US3548497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digger and lawn trimmer for sprinkler heads
Assignee: ROBERT N BICKETT
•
Filing: 1968-04-12
•
Granted: 1970-12-22
•
Expires: 1988-04-12
Abstract
No abstract record available.
Inventors
- 👤 Robert N Bickett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:26
CPC Classifications
A; A01; A01G; A01G20/00; A01G20/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1480151A
Cited
US1528157A
Cited
US2670537A
Cited
US2737104A
Cited
US2764926A
Cited
US3062299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |