US2620233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary sprinkler head
Assignee: Individual
•
Filing: 1950-01-27
•
Granted: 1952-12-02
•
Expires: 1970-01-27
Abstract
No abstract record available.
Inventors
- 👤 Otis O Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:50
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1901655A
Cited
US1827339A
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US1866844A
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US1912209A
Cited
US1977763A
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US1976030A
Cited
US1965912A
Cited
US2238849A
Cited
US2242680A
Cited
US2558663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |