US2787499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler
Assignee: Franklin Metal & Rubber Co
•
Filing: 1954-10-07
•
Granted: 1957-04-02
•
Expires: 1974-10-07
Abstract
No abstract record available.
Inventors
- 👤 Kenneth P Rolston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:56
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/06; A; A01; A01C; A01C23/00; A01C23/04; A01C23/042; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1144070A
Cited
US1901655A
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US1976030A
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US2307328A
Cited
US2560662A
Cited
US2501260A
Cited
US2563961A
Cited
US2531923A
Cited
US2596693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |