US2030945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control switch mechanism
Assignee: Vapor Car Heating Co Inc
•
Filing: 1934-02-26
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Granted: 1936-02-18
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Expires: 1954-02-26
Abstract
No abstract record available.
Inventors
- 👤 William M Smith
- 👤 Paul B Parks
- 👤 Edward A Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:10
CPC Classifications
B; B61; B61D; B61D27/00; B61D27/0018; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1927; G05D23/1928; G05D23/275; G05D23/27535; G05D23/27539; Y; Y10; Y10S; Y10S236/00; Y10S236/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-02-17 | 1939-08-19 | 1940-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-17 | 1943-08-19 | 1944-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-17 | 1947-08-19 | 1948-02-18 | $7700.00 | Window Closed / Lapsed |