US3510740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two phase servomechanism with a quadrature rejection method utilizing a sampling phase sensitive demodulator
Assignee: Bendix Corp
•
Filing: 1967-07-06
•
Granted: 1970-05-05
•
Expires: 1987-07-06
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Sylvander
- 👤 Walter Parfomak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1418
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2671875A
Cited
US2832020A
Cited
US3156915A
Cited
US3084320A
Cited
US3204125A
Cited
US3246221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |