US2177660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making improved thermoplastic sheeting
Assignee: Eastman Kodak Co
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Filing: 1937-02-25
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Granted: 1939-10-31
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Expires: 1957-02-25
Abstract
No abstract record available.
Inventors
- 👤 John S Kimble
- 👤 Ernest C Blackard
- 👤 John S Mclellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:40
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/911; B29C48/9135; B29C48/914; B29C48/03; B29C48/07; B29C48/08; B29C48/09; B29C48/10; B29C48/285; B29C48/286; B29C48/30; B29C48/32; B29C48/36; B29C48/375; B29C48/38; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C48/834; B29C48/86; B29C48/865; B29C48/91; B29C48/001; B29C48/0018; B29C48/0022; B29C48/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-10-30 | 1943-05-01 | 1943-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-30 | 1947-05-01 | 1947-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-30 | 1951-05-01 | 1951-10-31 | $7700.00 | Window Closed / Lapsed |