US3423911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water powered trimming device
Assignee: OSCAR G WOODRUFF
•
Filing: 1966-08-08
•
Granted: 1969-01-28
•
Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Oscar G Woodruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:27
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/67; A01D34/68; A01D34/6806; A01D2034/6831; A01D2034/6843; A01D2101/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A WATER POWERED GRASS CUTTER COMPRISING: A MOBILE FRAME; A SHAFT MOUNTED ON THE FRAME FOR ROTARY MOVEMENT; A BLADE, FIXED TO ONE END OF THE SHAFT, EXPOSED TO THE UNDERLYING SURFACE FOR CUTTING GRASS THEREON; AN INVERTED CUP-SHAPED TURBINE CONCENTRICALLY AFFIXED TO THE SHAFT ADJACENT THE OTHER END THEREOF HAVING A
Claim 2
Dependent Claim
52 words
A WATER POWERED GRASS CUTTER COMPRISING: A MOBILE FRAME; A SHAFT MOUNTED ON THE FRAME FOR ROTARY MOVEMENT; A BLADE, FIXED TO ONE END OF THE SHAFT, EXPOSED TO THE UNDERLYING SURFACE FOR CUTTING GRASS THEREON; AN INVERTED CUP-SHAPED TURBINE CONCENTRICALLY AFFIXED TO THE SHAFT ADJACENT THE OTHER END THEREOF HAVING A
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) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |