Patent US2932457A successfully refreshed from Google Patents.
US2932457A
Expired / Lapsed
US
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Oscillating type sprinkler
Assignee: Individual
•
Filing: 1957-05-28
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Granted: 1960-04-12
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Expires: 1977-05-28
Abstract
No abstract record available.
Inventors
- 👤 Walter W Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:36
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0417; B05B3/0432; B05B3/0438
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |