Patent US3500160A successfully refreshed from Google Patents.
US3500160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for bringing a rotating system controlled by means of a servosystem into phase and keeping it in phase
Assignee: US Philips Corp
•
Filing: 1968-04-22
•
Granted: 1970-03-10
•
Expires: 1988-04-22
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Sommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:17
CPC Classifications
H; H02; H02P; H02P23/00; H02P23/18; H02P23/186; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/933
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) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |