Patent US3398912A successfully refreshed from Google Patents.
US3398912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film strip cartridge
Assignee: Individual
•
Filing: 1965-05-03
•
Granted: 1968-08-27
•
Expires: 1985-05-03
Abstract
No abstract record available.
Inventors
- 👤 John H Weggeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:58
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/08; G03B23/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1346479A
Cited
US1232125A
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US1450446A
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US2072625A
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US2384637A
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US2511383A
Cited
US2461668A
Cited
US2721041A
Cited
US3143050A
Cited
US3275256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |