US3490833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counterbalancing spacer for film magazine and hand held motion picture camera
Assignee: Panavision Inc
•
Filing: 1967-04-17
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Granted: 1970-01-20
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Expires: 1987-04-17
Abstract
No abstract record available.
Inventors
- 👤 Robert E Gottschalk
- 👤 Lorin Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:43
CPC Classifications
F; F16; F16M; F16M13/00; F16M13/04; G; G03; G03B; G03B1/00; G03B1/42; G03B17/00; G03B17/56; G03B17/561; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |