Patent US3323707A successfully refreshed from Google Patents.
US3323707A
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Assignee: Individual
•
Filing: 1966-02-15
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Granted: 1967-06-06
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Expires: 1986-02-15
Abstract
No abstract record available.
Inventors
- 👤 Leonard H King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:08
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/52; B65D75/58; B65D75/5805; B65D75/04; B65D75/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IMPROVED OPENING MEANS FOR A RUPTURABLE PACKAGE HAVING A PAIR OF OPPOSED IMPERFORATE THERMOPLASTIC LAYERS JOINED TO EACH OTHER ALONG THE PERIPHERY THEREOF, SAID IMPROVEMENT COMPRISING AT LEAST ONE RIB INTEGRALLY FORMED ON THE SURFACE OF EACH OF SAID TWO LAYERS, SAID RIBS AND SAID RESPECTIVE LAYERS, IN COMBINATION, BEING OF GREATER THICKNESS THAN THE INDIVIDUAL LAYERS, SAID RIBS DEFINING A LINE ALONG WHICH THE PACKAGE IS TO BE OPENED.
Claim 2
Dependent Claim
70 words
IMPROVED OPENING MEANS FOR A RUPTURABLE PACKAGE HAVING A PAIR OF OPPOSED IMPERFORATE THERMOPLASTIC LAYERS JOINED TO EACH OTHER ALONG THE PERIPHERY THEREOF, SAID IMPROVEMENT COMPRISING AT LEAST ONE RIB INTEGRALLY FORMED ON THE SURFACE OF EACH OF SAID TWO LAYERS, SAID RIBS AND SAID RESPECTIVE LAYERS, IN COMBINATION, BEING OF GREATER THICKNESS THAN THE INDIVIDUAL LAYERS, SAID RIBS DEFINING A LINE ALONG WHICH THE PACKAGE IS TO BE OPENED.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |