US3547891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat formable polyester film
Assignee: Eastman Kodak Co
•
Filing: 1969-04-02
•
Granted: 1970-12-15
•
Expires: 1989-04-02
Abstract
No abstract record available.
Inventors
- 👤 Charles D Snead
- 👤 Robert L Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:40
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/25; B29C48/88; B29C48/911; B29C48/9135; B29C48/914; B29C48/915; B29C48/916; B29C48/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2847709A
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US2975484A
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US3030173A
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US3256258A
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US3091510A
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US3361728A
Cited
US3305911A
Cited
US3293339A
Cited
US3299171A
Cited
US3424835A
Cited
US3426754A
Cited
US3379001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |