US2617027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse-time demodulator
Assignee: Hartford National Bank and Trust Co
•
Filing: 1946-11-22
•
Granted: 1952-11-04
•
Expires: 1966-11-22
Abstract
No abstract record available.
Inventors
- 👤 Douma Tjiske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:34
CPC Classifications
H; H03; H03K; H03K9/00; H03K9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2191185A
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US2188653A
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US2274184A
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US2262407A
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US2299252A
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US2362503A
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US2416305A
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US2416306A
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US2391776A
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US2557038A
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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) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |