Patent US2581031A successfully refreshed from Google Patents.
Patent US3067079A successfully refreshed from Google Patents.
US3067079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic seam
Assignee: Union Carbide Corp
•
Filing: 1961-04-24
•
Granted: 1962-12-04
•
Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Hyman G Chinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:57
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/40; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/114; B29C66/1142; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/4329; B29C66/49; B29C66/70; B29C66/72; B29C66/723; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C53/00; B29C53/56; B29C53/58; B29C66/7232; B29C66/72321; B29C66/72327; B29C66/72328; B29K; B29K2711/00; B29K2711/12; B29K2711/126; B29L; B29L2009/00; B29L2023/00; B29L2023/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A SHEET MATERIAL CONTAINER HAVING A MOISTURE PROOF SEAM COMPRISING CONTOURED SHEET MATERIAL AND WHEREIN ADJACENT EDGES OF SAID SHEET MATERIAL DEFINE A SEAM AND EXTENDING FROM THE EDGE MARGIN OF THE FIRST SHEET TO THE EDGE MARGIN OF THE SECOND SHEET ACROSS SAID SEAM A HARDENED, SELF-SUPPORTING SKIRT OF THERMOPLASTRIC WHICH IS HEAT AND PRESSURE BONDED TO THE EDGE MARGIN OF SAID FIRST SHEET AND ADHESIVE BONDED TO THE EDGE MARGIN OF SAID SECOND SHEET.
Claim 2
Dependent Claim
76 words
A SHEET MATERIAL CONTAINER HAVING A MOISTURE PROOF SEAM COMPRISING CONTOURED SHEET MATERIAL AND WHEREIN ADJACENT EDGES OF SAID SHEET MATERIAL DEFINE A SEAM AND EXTENDING FROM THE EDGE MARGIN OF THE FIRST SHEET TO THE EDGE MARGIN OF THE SECOND SHEET ACROSS SAID SEAM A HARDENED, SELF-SUPPORTING SKIRT OF THERMOPLASTRIC WHICH IS HEAT AND PRESSURE BONDED TO THE EDGE MARGIN OF SAID FIRST SHEET AND ADHESIVE BONDED TO THE EDGE MARGIN OF SAID SECOND SHEET.
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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |