US3453882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for indicating passage of a projectile in a bore
Assignee: United States Department of the Army
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Filing: 1967-11-21
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Granted: 1969-07-08
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Expires: 1987-11-21
Abstract
No abstract record available.
Inventors
- 👤 Richard D Kirkendall
- 👤 Robert W Deas
- 👤 Nelson H Mccall
- 👤 Herman P Gay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:39
CPC Classifications
G; G04; G04F; G04F8/00; G04F8/08; F; F41; F41A; F41A31/00
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) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |