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Patent US2837332A successfully refreshed from Google Patents.
US2837332A
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US
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Continuous film reel
Assignee: Individual
•
Filing: 1953-05-21
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Granted: 1958-06-03
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Expires: 1973-05-21
Abstract
No abstract record available.
Inventors
- 👤 Busch Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:34
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1382040A
Cited
US1627198A
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US2183117A
Cited
US2238719A
Cited
FR869914A
Cited
US2288983A
Cited
US2426838A
Cited
US2490771A
Cited
US2656184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |