US3564825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable inertia weight for tree shaker
Assignee: AGMAC Inc
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Filing: 1968-09-30
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Granted: 1971-02-23
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Expires: 1988-09-30
Abstract
Abstract A VARIABLE INERTIA WEIGHT BOB FOR USE IN THE TREE SHAKERS CONSISTING OF AN ECCENTRIC HOLLOW STRUCTURE PARTIALLY FILLED WITH LEAD PELLETS.
Inventors
- 👤 Russell D Gould
- 👤 John E Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:18
CPC Classifications
A; A01; A01D; A01D46/00; A01D46/26; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |