US3047723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric hit detector system
Assignee: Textron Systems Corp
•
Filing: 1958-12-31
•
Granted: 1962-07-31
•
Expires: 1978-12-31
Abstract
No abstract record available.
Inventors
- 👤 Phillip M Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
F; F41; F41J; F41J5/00; F41J5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US966361A
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US2113899A
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US2269256A
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US2362473A
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US2342245A
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US2438825A
Cited
GB701935A
Cited
US2900521A
Cited
US2825569A
Cited
US2838694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |