Patent US3307738A successfully refreshed from Google Patents.
US3307738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated collapsible tube
Assignee: Primerica Inc
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Filing: 1964-05-22
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Granted: 1967-03-07
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Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Scheindel Christian Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:59
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/03; B29C66/032; B29C66/0324; B29C66/03241; B29C66/03242; B29C53/00; B29C53/36; B29C65/00; B29C65/48; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/70; B29C66/72; B29C66/723; B29C66/7234; B29D; B29D23/00; B29D23/20; B65; B65D; B65D35/00; B65D35/02; B65D35/04; B65D35/08; B65D35/10; B29C65/4805; B29C65/481; B29C66/431; B29C66/4312; B29C66/43121; B29C66/43123; B29C66/7232; B29C66/72321; B29C66/72327; B29C66/72328; B29L; B29L2009/00; B29L2023/00; B29L2023/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A COLLAPSIBLE CONTAINER COMPRISING A TUBULAR BODY OF LAMINATED CONSTRUCTION INCLUDING A BARRIER LAYER AND AN INNER LAYER OF THERMOPLASTIC MATERIAL SUBSTANTIALLY COEXTENSIVELY BONDED TOGETHER, SAID LAYERS BEING OVERLAPPED A PREDETERMINED DISTANCE AT THEIR OPPOSITE CIRCUMFERENTIAL MARGINS AND JOINED TOGETHER BY HEAT AND PRESSURE PROVIDING INNER AND OUTER LAP EDGES OF A SIDE SEAM EXTENDING THE FULL LENGTH OF SAID BODY, SAID LAPPED EDGES HAVING A REDUCED THICKNESS OF APPROXIMATELY 75% OF THE COMBINED THICKNESS OF SAID LAYERS BY REASON OF A PORTION OF SAID THERMOPLASTIC LAYER ON SAID LAPPED EDGES BEING COMPRESSED AND SQUEEZED OUT FROM SAID LAPPED EDGES ON THE APPLICATION OF HEAT AND PRESSURE, SAID SQUEEZED OUT PORTION FORMING FILLETS TO EACH SIDE OF SAID SEAM WHICH ARE PRESSED AGAINST THE CORRESPONDING BODY LAYER CONTIGUOUS SAID SEAM AND ENCLOSE EDGES OF SAID BARRIER LAYER IN SAID SEAM.
Claim 2
Dependent Claim
140 words
A COLLAPSIBLE CONTAINER COMPRISING A TUBULAR BODY OF LAMINATED CONSTRUCTION INCLUDING A BARRIER LAYER AND AN INNER LAYER OF THERMOPLASTIC MATERIAL SUBSTANTIALLY COEXTENSIVELY BONDED TOGETHER, SAID LAYERS BEING OVERLAPPED A PREDETERMINED DISTANCE AT THEIR OPPOSITE CIRCUMFERENTIAL MARGINS AND JOINED TOGETHER BY HEAT AND PRESSURE PROVIDING INNER AND OUTER LAP EDGES OF A SIDE SEAM EXTENDING THE FULL LENGTH OF SAID BODY, SAID LAPPED EDGES HAVING A REDUCED THICKNESS OF APPROXIMATELY 75% OF THE COMBINED THICKNESS OF SAID LAYERS BY REASON OF A PORTION OF SAID THERMOPLASTIC LAYER ON SAID LAPPED EDGES BEING COMPRESSED AND SQUEEZED OUT FROM SAID LAPPED EDGES ON THE APPLICATION OF HEAT AND PRESSURE, SAID SQUEEZED OUT PORTION FORMING FILLETS TO EACH SIDE OF SAID SEAM WHICH ARE PRESSED AGAINST THE CORRESPONDING BODY LAYER CONTIGUOUS SAID SEAM AND ENCLOSE EDGES OF SAID BARRIER LAYER IN SAID SEAM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |