US2550281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Appliance timing controller
Assignee: Individual
•
Filing: 1948-09-29
•
Granted: 1951-04-24
•
Expires: 1968-09-29
Abstract
No abstract record available.
Inventors
- 👤 Martin Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:18
CPC Classifications
H; H01; H01H; H01H7/00; H01H7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1412568A
Cited
US1820252A
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US2139523A
Cited
US1835844A
Cited
US2053143A
Cited
US2254795A
Cited
US2100284A
Cited
US2143692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |