US3437912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant potential power supply
Assignee: General Precision Inc
•
Filing: 1966-12-30
•
Granted: 1969-04-08
•
Expires: 1986-12-30
Abstract
No abstract record available.
Inventors
- 👤 David Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:01
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/1563
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3068392A
Cited
US3350628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |