US3525787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing low permanent shrinkage cellophane
Assignee: Shawmut Capital Corp
•
Filing: 1966-09-26
•
Granted: 1970-08-25
•
Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 Daniel Edward Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:58
CPC Classifications
B; B29; B29C; B29C67/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1974755A
Cited
US2115132A
Cited
US2177659A
Cited
US2624245A
Cited
US2970345A
Cited
US3157723A
Cited
US3329556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |