US2827607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A. c. regulator bridge circuit
Assignee: Individual
•
Filing: 1953-12-15
•
Granted: 1958-03-18
•
Expires: 1973-12-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Zimmerle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:27
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2239768A
Cited
US2584748A
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US2510467A
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US2453451A
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US2682635A
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US2690535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |