US3543116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital variable speed controller comparing a tachometer pulse source with a reference
Assignee: Avtron Manufacturing Inc
•
Filing: 1968-05-01
•
Granted: 1970-11-24
•
Expires: 1988-05-01
Abstract
No abstract record available.
Inventors
- 👤 Lambert Haner
- 👤 Robert H Sayre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:26
CPC Classifications
H; H02; H02P; H02P23/00; H02P23/22; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/912
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |