US2889993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile irrigator or sprinkler
Assignee: Individual
•
Filing: 1954-11-02
•
Granted: 1959-06-09
•
Expires: 1974-11-02
Abstract
No abstract record available.
Inventors
- 👤 Elwood H Willetts
- 👤 Carl B Ingram
- 👤 Louis E Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:36
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/09; F; F16; F16L; F16L27/00; F16L27/08; F16L27/0849; F16L27/0857; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US288222A
Cited
US2512695A
Cited
US2707117A
Cited
US2642311A
Cited
US2652282A
Cited
US2647533A
Cited
US2742319A
Cited
US2728605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |