US3501966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photodynamic pickoff means having a pulse duration modulated output
Assignee: Singer General Precision Inc
•
Filing: 1967-12-04
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Granted: 1970-03-24
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Expires: 1987-12-04
Abstract
No abstract record available.
Inventors
- 👤 Sol Shapiro
- 👤 Constant J De Cotiis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/28; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1261; Y10T74/1264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2948813A
Cited
US3142183A
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US3277304A
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US3379889A
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US3355953A
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US3323378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |