US3420975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostrictive actuator
Assignee: Friden Inc
•
Filing: 1966-03-24
•
Granted: 1969-01-07
•
Expires: 1986-03-24
Abstract
No abstract record available.
Inventors
- 👤 Louis C Thayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:23
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/26; B41J9/36; G; G06; G06K; G06K1/00; G06K1/02; H; H01; H01H; H01H57/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A SWITCH COMPRISING: A PAIR OF MEMBERS;
Claim 2
Dependent Claim
7 words
A SWITCH COMPRISING: A PAIR OF MEMBERS;
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |