Patent US2764678A successfully refreshed from Google Patents.
US2764678A
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US
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Pulse stretcher
Assignee: AIRBORNE INSTR LAB Inc
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Filing: 1951-06-07
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Granted: 1956-09-25
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Expires: 1971-06-07
Abstract
No abstract record available.
Inventors
- 👤 James F Craib
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:16
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/04; H03K5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2227906A
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US2266154A
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US2681384A
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US2457559A
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US2592738A
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US2617883A
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US2539465A
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US2556200A
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US2644130A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |