US2979985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film counter and spring tension indicators
Assignee: AM BOL CORP
•
Filing: 1955-10-20
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Granted: 1961-04-18
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Expires: 1975-10-20
Abstract
No abstract record available.
Inventors
- 👤 Bolsey Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:08
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/02; G03B1/04; G03B1/12; G03B21/00; G03B21/14; G03B21/32; G03B21/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1858792A
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DE884601C
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US2585451A
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US2656816A
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US2917981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |