US4047350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Log product and improvements in machine to prepare logs for log houses
Assignee: Individual
•
Filing: 1976-04-19
•
Granted: 1977-09-13
•
Expires: 1996-04-19
Abstract
Abstract Method and machine and a log product for log house construction includes improvements in apparatus to shape, and finish the logs, divide into halves or quarter sections for tongue-and-groove assembly construction of floors, walls, or ceiling appurtenant to the log house. Equally-spaced holes between the tongues and grooves provide additional functional uses for utility lines or vertical supports as needed.
Inventors
- 👤 Finis Lavell Chisum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:14
CPC Classifications
B; B27; B27B; B27B1/00; B23; B23Q; B23Q11/00; B23Q11/0042; B27C; B27C7/00; B27C7/005; B27F; B27F5/00; B27F5/02; B27M; B27M3/00; E; E04; E04B; E04B2/00; E04B2/56; E04B2/70; E04B2/701; E04B2/702
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A finished log for log house construction comprising an esentially cylindrical log cut to desired length, upper and lower parallel flattened surfaces along the longitudinal length of said log, two spaced and parallel tongue members extending from one of said surfaces along said longitudinal length, two spaced and parallel groove members, reverse images of said tongue members, extending into the other surface along the longitudinal length thereof, each end of said log having vertical outward opening grooves perpendicular to said flattened surfaces, said grooves being a first groove nearest the said end and a second groove of dimension less than the width of said first groove, and at least one vertical hole extending through said log perpendicular to said flattened surfaces and located between said spaced tongue and grooves.
Claim 2
Dependent Claim
129 words
A finished log for log house construction comprising an esentially cylindrical log cut to desired length, upper and lower parallel flattened surfaces along the longitudinal length of said log, two spaced and parallel tongue members extending from one of said surfaces along said longitudinal length, two spaced and parallel groove members, reverse images of said tongue members, extending into the other surface along the longitudinal length thereof, each end of said log having vertical outward opening grooves perpendicular to said flattened surfaces, said grooves being a first groove nearest the said end and a second groove of dimension less than the width of said first groove, and at least one vertical hole extending through said log perpendicular to said flattened surfaces and located between said spaced tongue and grooves.
References Cited (Backward Citations)
US2021341A
Cited
US2130231A
Cited
US2619686A
Cited
US3189950A
Cited
US3742665A
Cited
US3849960A
Cited
US3969859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |