US3215933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screens for use in a small projectile velocity measuring system
Assignee: Individual
•
Filing: 1962-04-11
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Granted: 1965-11-02
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Expires: 1982-04-11
Abstract
No abstract record available.
Inventors
- 👤 Jr John J Scanlon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
F; F41; F41J; F41J5/00; F41J5/04; F41J5/044; G; G01; G01P; G01P3/00; G01P3/64; G01P3/66; G01P3/665
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN A DEVICE FOR MEASURING THE VELOCITY OF A PROJECTILE, A PAIR OF SPACED APART FRAMES, A PAIR OF CONDUCTIVE SCREENS ATTACHED TO EACH OF SAID FRAMES, EACH PAIR OF SCREENS BEING SPACED APART LESS THAN THE LENGTH OF THE PROJECTILE WHOSE VELOCITY IS BEING MEASURED, A TIMING DEVICE FOR MEASURING THE TIME FOR PROJECTILE TRAVEL BETWEEN SAID PAIR OF FRAMES, AN ELECTRIC CIRCUIT CLOSED BY A PENETRATING PROJECTILE FOR STARTING THE OPERATION OF SAID TIMING DEVICE, ANOTHER ELECTRIC CIRCUIT CLOSED BY THE SAME PROJECTILE FOR STOPPING THE OPERATION OF SAID TIMING DEVICE AFTER IT HAS PASSED BETWEEN SAID
Claim 2
Dependent Claim
99 words
IN A DEVICE FOR MEASURING THE VELOCITY OF A PROJECTILE, A PAIR OF SPACED APART FRAMES, A PAIR OF CONDUCTIVE SCREENS ATTACHED TO EACH OF SAID FRAMES, EACH PAIR OF SCREENS BEING SPACED APART LESS THAN THE LENGTH OF THE PROJECTILE WHOSE VELOCITY IS BEING MEASURED, A TIMING DEVICE FOR MEASURING THE TIME FOR PROJECTILE TRAVEL BETWEEN SAID PAIR OF FRAMES, AN ELECTRIC CIRCUIT CLOSED BY A PENETRATING PROJECTILE FOR STARTING THE OPERATION OF SAID TIMING DEVICE, ANOTHER ELECTRIC CIRCUIT CLOSED BY THE SAME PROJECTILE FOR STOPPING THE OPERATION OF SAID TIMING DEVICE AFTER IT HAS PASSED BETWEEN SAID
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |