US3173601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing sheet material in predetermined lengths
Assignee: Millennium Petrochemicals Inc
•
Filing: 1962-08-23
•
Granted: 1965-03-16
•
Expires: 1982-08-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul Victor Osborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:02
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/08; B65D83/0805; B65D83/0847; B65D85/00; B65D85/67; B65D85/671; B65D85/672; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN CONTINUOUS LENGTH OF FLATTENED THERMOPLASTIC TUBULAR FILM PROVIDED WITH SPACED TRANSVERSE SEALS AND A SEVERANCE LINE IMMEDIATELY ADJACENT EACH OF SAID SEALS, EACH SEVERANCE LINE INCLUDING A CENTRAL PORTION OF GREATEST FRANGIBILITY AND A PORTION OF LESSER LENGTH AND OF INCREASED RESISTANCE TO SEVERANCE LOCATED ON EACH SIDE OF SAID CENTRAL PORTION, THE REMAINDER OF SAID SEVERANCE LINE EXTENDING OUTWARDLY TO BOTH EDGES OF SAID FILM BEING OF GREATER RESISTANCE TO SEVERANCE THAN SAID CENTRAL PORTION BUT OF LESSER RESISTANCE THAN SAID PORTIONS OF INCREASED RESISTANCE.
Claim 2
Dependent Claim
87 words
IN CONTINUOUS LENGTH OF FLATTENED THERMOPLASTIC TUBULAR FILM PROVIDED WITH SPACED TRANSVERSE SEALS AND A SEVERANCE LINE IMMEDIATELY ADJACENT EACH OF SAID SEALS, EACH SEVERANCE LINE INCLUDING A CENTRAL PORTION OF GREATEST FRANGIBILITY AND A PORTION OF LESSER LENGTH AND OF INCREASED RESISTANCE TO SEVERANCE LOCATED ON EACH SIDE OF SAID CENTRAL PORTION, THE REMAINDER OF SAID SEVERANCE LINE EXTENDING OUTWARDLY TO BOTH EDGES OF SAID FILM BEING OF GREATER RESISTANCE TO SEVERANCE THAN SAID CENTRAL PORTION BUT OF LESSER RESISTANCE THAN SAID PORTIONS OF INCREASED RESISTANCE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |