US3043937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control means
Assignee: FILTRON CO Inc
•
Filing: 1959-07-28
•
Granted: 1962-07-10
•
Expires: 1979-07-28
Abstract
No abstract record available.
Inventors
- 👤 Milton Leonard
- 👤 John S Lory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:06
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/74; H01H37/76; H01H37/764
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1108753A
Cited
US1132419A
Cited
US1852312A
Cited
US1986507A
Cited
US2085379A
Cited
US2749409A
Cited
US2955179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |