US2769666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse operated sprinkler
Assignee: Scovill Inc
•
Filing: 1954-02-01
•
Granted: 1956-11-06
•
Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 Donald L Spender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:59
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0455; B05B3/0461
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1111158A
Cited
US1653160A
Cited
US2228720A
Cited
US2254270A
Cited
US2309782A
Cited
US2345030A
Cited
US2421551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |