Patent US2601900A successfully refreshed from Google Patents.
US2601900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for fire-extinguishing system
Assignee: Individual
•
Filing: 1949-11-08
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Granted: 1952-07-01
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Expires: 1969-11-08
Abstract
No abstract record available.
Inventors
- 👤 Cecil H Rand
- 👤 Christopher G Aycock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:42
CPC Classifications
A; A62; A62C; A62C35/00; A62C35/58; A62C35/64; A62C35/645; F; F16; F16K; F16K17/00; F16K17/36; F16K17/38; F16K17/383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |