US2814526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler head
Assignee: EDWARD W OSANN JR
•
Filing: 1953-08-26
•
Granted: 1957-11-26
•
Expires: 1973-08-26
Abstract
No abstract record available.
Inventors
- 👤 Frank P Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:21
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/34; B05B1/3405; B05B1/341; B05B1/3478; B05B1/30; B05B1/3033; B05B1/3421; B05B1/3431; B05B1/3442; B05B1/3447; Y; Y10; Y10S; Y10S239/00; Y10S239/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US579371A
Cited
US1245569A
Cited
US1475052A
Cited
US1756483A
Cited
US2032064A
Cited
US2562503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |