US3057557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistorized heater control system
Assignee: Motors Liquidation Co
•
Filing: 1959-04-16
•
Granted: 1962-10-09
•
Expires: 1979-04-16
Abstract
No abstract record available.
Inventors
- 👤 James H Guyton
- 👤 George M Gaskill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:18
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1927; G05D23/193; G05D23/1931; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1482759A
Cited
US1699067A
Cited
US1909870A
Cited
US2656114A
Cited
US2872595A
Cited
US2875392A
Cited
US2864978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |