Patent US645722A successfully refreshed from Google Patents.
US645722A
Expired / Lapsed
US
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Pressure-relief valve.
Assignee: PLANTERS COMPRESS CO
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Filing: 1899-10-10
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Granted: 1900-03-20
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Expires: 1919-10-10
Abstract
No abstract record available.
Inventors
- 👤 Watson M Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:16
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/025; F16K15/026; Y; Y10; Y10S; Y10S137/00; Y10S137/904; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7939
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) | 1903-03-20 | 1903-09-19 | 1904-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-03-20 | 1907-09-19 | 1908-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-03-20 | 1911-09-19 | 1912-03-20 | $7700.00 | Window Closed / Lapsed |