US3279159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn edger and rotary lawn mower blade
Assignee: Individual
•
Filing: 1964-01-24
•
Granted: 1966-10-18
•
Expires: 1984-01-24
Abstract
No abstract record available.
Inventors
- 👤 James A Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:00
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE IMPROVEMENT IN ROTARY LAWN MOWER AND EDGE BLADES ADAPTED TO ENDWISE CUTTING COMPRISING: A FLEXIBLE MATRIX INCLUDING: PLURAL CUTTING ELEMENTS AS CORES EMBEDDED THEREIN, THE CUTTING ELEMENTS BEING FLEXIBLE AND OF GREATER WEAR RESISTANCE THAN THE MATRIX; THE CUTTING ELEMENTS BEING DISPOSED AT RIGHT ANGLES TO THE ROTARY AXIS OF THE BLADE; REINFORCING WRAPPINGS ABOUT THE CUTTING ELEMENTS AND INCLUDED WITHIN THE MATRIX, SAID WRAPPINGS BEING DISCONTINUOUS OF EACH OTHER; WHEREBY CONTINUOUS OPERATIONAL END-FOR-END WEAR OF THE MATRIX MAY EXPOSE THE CUTTING ELEMENTS FOR RIGID ARCUATE CUTTING.
Claim 2
Dependent Claim
88 words
THE IMPROVEMENT IN ROTARY LAWN MOWER AND EDGE BLADES ADAPTED TO ENDWISE CUTTING COMPRISING: A FLEXIBLE MATRIX INCLUDING: PLURAL CUTTING ELEMENTS AS CORES EMBEDDED THEREIN, THE CUTTING ELEMENTS BEING FLEXIBLE AND OF GREATER WEAR RESISTANCE THAN THE MATRIX; THE CUTTING ELEMENTS BEING DISPOSED AT RIGHT ANGLES TO THE ROTARY AXIS OF THE BLADE; REINFORCING WRAPPINGS ABOUT THE CUTTING ELEMENTS AND INCLUDED WITHIN THE MATRIX, SAID WRAPPINGS BEING DISCONTINUOUS OF EACH OTHER; WHEREBY CONTINUOUS OPERATIONAL END-FOR-END WEAR OF THE MATRIX MAY EXPOSE THE CUTTING ELEMENTS FOR RIGID ARCUATE CUTTING.
References Cited (Backward Citations)
US2663137A
Cited
US3133398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |