US3075792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: IMP Eastman Corp
•
Filing: 1959-07-08
•
Granted: 1963-01-29
•
Expires: 1979-07-08
Abstract
No abstract record available.
Inventors
- 👤 George E Franck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:26
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/10; F16L37/113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA562012A
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US1214985A
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US1275182A
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US1912299A
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US2250495A
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US2251253A
Cited
US2478149A
Cited
US2477677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |