Patent US3309765A successfully refreshed from Google Patents.
US3309765A
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Apparatus and methods for replacing the knife units of a woodcutting machine
Assignee: Individual
•
Filing: 1965-06-11
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Granted: 1967-03-21
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Expires: 1985-06-11
Abstract
No abstract record available.
Inventors
- 👤 Kirsten Paul Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:36
CPC Classifications
B; B27; B27L; B27L11/00; B27L11/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49721; Y10T29/4973; Y10T29/49815; Y10T29/49822; Y10T29/49826; Y10T29/53; Y10T29/53478
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A METHOD OF REPLACING REMOVABLE KNIFE UNITS ON A ROTATABLE CARRIER OF A WOODCUTTING MACHINE, SAID METHOD COMPRISING DETACHABLY CONNECTING REPLACEMENT KNIFE UNITS IN RECEIVING STATIONS IN A FRAME, MOVING THE FRAME AND CARRIER RELATIVE TO ONE ANOTHER BETWEEN INDEX POSITIONS TO SUCCESSIVELY ALIGN THE RECEIVING STATIONS ONE AT A TIME WITH
Claim 2
Independent Claim
52 words
A METHOD OF REPLACING REMOVABLE KNIFE UNITS ON A ROTATABLE CARRIER OF A WOODCUTTING MACHINE, SAID METHOD COMPRISING DETACHABLY CONNECTING REPLACEMENT KNIFE UNITS IN RECEIVING STATIONS IN A FRAME, MOVING THE FRAME AND CARRIER RELATIVE TO ONE ANOTHER BETWEEN INDEX POSITIONS TO SUCCESSIVELY ALIGN THE RECEIVING STATIONS ONE AT A TIME WITH
References Cited (Backward Citations)
US2540836A
Cited
US3183585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |