Patent US3406431A successfully refreshed from Google Patents.
US3406431A
Expired / Lapsed
US
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Releasable fastener for camera cover
Assignee: Coleman Engineering Co Inc
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Filing: 1967-05-25
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Granted: 1968-10-22
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Expires: 1987-05-25
Abstract
No abstract record available.
Inventors
- 👤 Lee B Armstrong
- 👤 Marvin A Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:06
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; G03B17/305; Y; Y10; Y10S; Y10S411/00; Y10S411/913; Y10T; Y10T24/00; Y10T24/30; Y10T24/309; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45482; Y10T24/45487
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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |