Patent US3988872A successfully refreshed from Google Patents.
US3988872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable building frame connector
Assignee: Individual
•
Filing: 1974-04-23
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Granted: 1976-11-02
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Expires: 1994-04-23
Abstract
Abstract A truss-like apparatus to provide structural connection of wooden members in the erection of shelters comprising a complementary pair of tiebeam and kingpost members, fastening means for the truss members, and means for clamping said wooden members when said truss members are fastened together.
Inventors
- 👤 Harold C. Adamson
- 👤 George Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:01
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/26; E04B1/2604; E04B2001/2644; E04B2001/2652; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/44; Y10T403/46
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
111 words
Apparatus to provide the structural connection of a plurality of wooden members in the erection of shelters comprising a pair of identical three legged channel members having the shapes of inverted tees, complementary U-shaped clamps formed at oblique angles on opposite ends of two legs of said channel members, complementary combination U-shaped clamps formed at the ends of corresponding third legs of said channel members, and means for fastening the complementary bases of said channel members to rigidly clamp and position each of said plurality of wooden members by said complementary combination U-shaped clamps and at least two of said plurality of wooden members by means of said complementary U-shaped clamps.
Claim 2
Dependent Claim
111 words
Apparatus to provide the structural connection of a plurality of wooden members in the erection of shelters comprising a pair of identical three legged channel members having the shapes of inverted tees, complementary U-shaped clamps formed at oblique angles on opposite ends of two legs of said channel members, complementary combination U-shaped clamps formed at the ends of corresponding third legs of said channel members, and means for fastening the complementary bases of said channel members to rigidly clamp and position each of said plurality of wooden members by said complementary combination U-shaped clamps and at least two of said plurality of wooden members by means of said complementary U-shaped clamps.
Claim 3
Dependent Claim
18 words
Apparatus as claimed in claim 1 further comprising means for fastening said U-shaped clamps to said wooden members.
Claim 4
Dependent Claim
17 words
Apparatus as claimed in claim 1 wherein said identical three legged channel members essentially consist of metals.
Claim 5
Dependent Claim
17 words
Apparatus as claimed in claim 1 wherein said identical three legged channel members essentially consist of plastic.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |