US2160689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for radiating pipes
Assignee: Vapor Car Heating Co Inc
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Filing: 1938-03-31
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Granted: 1939-05-30
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Expires: 1958-03-31
Abstract
No abstract record available.
Inventors
- 👤 John Van Vulpen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:00
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/02; F24D19/022; F24D19/0236; F24D19/0203; F24D19/0209; F24D19/024; F24D19/0256; F24D19/0263; F24D2220/00; F24D2220/20; F24D2220/2009; F24D2220/2027
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) | 1942-05-29 | 1942-11-28 | 1943-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-29 | 1946-11-28 | 1947-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-29 | 1950-11-28 | 1951-05-30 | $7700.00 | Window Closed / Lapsed |