US3185442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timber wedge
Assignee: Petro Tex Chemical Corp
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Filing: 1962-12-03
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Granted: 1965-05-25
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Monroe W Hemphill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:44
CPC Classifications
B; B27; B27G; B27G19/00; B27G19/08; A; A01; A01G; A01G23/00; A01G23/02; A01G23/099
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A TIMBER FALLING DEVICE COMPRISING AN ELONGATED WEDGE-SHAPED BLOCK RIGID, NON-METALLIC AN IMPACTRESISTANT MATERIAL, SAID WEDGE SHAPED BLOCK INCLUDING A LOWER SURFACE AND AN UPPER SURFACE INCLINED THERETO, BOTH OF SAID SURFACES HAVING FORMED THEREIN A PLURALITY OF SPACED, PARALLEL, ELONGATED GROOVES, SAID GROOVES EACH BEING DEFINED BY A PAIR OF OPPOSED, FACING SIDE WALLS AND A BOTTOM WALL, SAID BOTTOM WALLS OF SAID GROOVES FORMED IN SAID LOWER SURFACE BEING SUBSTANTIALLY PARALLEL TO THE PLANE OF SAID UPPER SURFACE, AND SAID BOTTOM WALLS OF SAID GROOVES FORMED IN SAID UPPER SURFACE BEING SUBSTANTIALLY PARALLEL TO THE PLANE OF SAID LOWER SURFACE.
Claim 2
Dependent Claim
102 words
A TIMBER FALLING DEVICE COMPRISING AN ELONGATED WEDGE-SHAPED BLOCK RIGID, NON-METALLIC AN IMPACTRESISTANT MATERIAL, SAID WEDGE SHAPED BLOCK INCLUDING A LOWER SURFACE AND AN UPPER SURFACE INCLINED THERETO, BOTH OF SAID SURFACES HAVING FORMED THEREIN A PLURALITY OF SPACED, PARALLEL, ELONGATED GROOVES, SAID GROOVES EACH BEING DEFINED BY A PAIR OF OPPOSED, FACING SIDE WALLS AND A BOTTOM WALL, SAID BOTTOM WALLS OF SAID GROOVES FORMED IN SAID LOWER SURFACE BEING SUBSTANTIALLY PARALLEL TO THE PLANE OF SAID UPPER SURFACE, AND SAID BOTTOM WALLS OF SAID GROOVES FORMED IN SAID UPPER SURFACE BEING SUBSTANTIALLY PARALLEL TO THE PLANE OF SAID LOWER SURFACE.
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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |