US1560656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm valve
Assignee: Bridgestone Firestone Inc
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Filing: 1923-09-22
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Granted: 1925-11-10
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Expires: 1943-09-22
Abstract
No abstract record available.
Inventors
- 👤 Roy W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:56
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/126; F16K31/1262
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) | 1928-11-09 | 1929-05-11 | 1929-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-11-09 | 1933-05-11 | 1933-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-11-09 | 1937-05-11 | 1937-11-10 | $7700.00 | Window Closed / Lapsed |