US1703531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm for expansion valves
Assignee: McCord Radiator and Manufacturing Co
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Filing: 1927-05-23
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Granted: 1929-02-26
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Expires: 1947-05-23
Abstract
No abstract record available.
Inventors
- 👤 Rollin M Hyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:24
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/33; F25B41/335; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7826
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) | 1932-02-26 | 1932-08-27 | 1933-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-02-26 | 1936-08-27 | 1937-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-02-26 | 1940-08-27 | 1941-02-26 | $7700.00 | Window Closed / Lapsed |