Patent US3725170A successfully refreshed from Google Patents.
US3725170A
Expired / Lapsed
US
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Method of and apparatus for forming corner pads
Assignee: Cellu Products Co Inc
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Filing: 1970-05-11
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Granted: 1973-04-03
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Expires: 1990-05-11
Abstract
Abstract A method of and apparatus for forming corner pads utilizing a plurality of plies, each of which is adapted to be folded into a trihedral angle arrangement, wherein the plies are successively fed into juxtaposed relation while adhesive is applied to predetermined surfaces of certain of the plies, and the plies are successively formed into trihedral angle arrangements while being successively placed in contiguous, nesting relationship to secure the nested plies together by the adhesive to maintain the same in a collective trihedral angle arrangement.
Inventors
- 👤 B Doll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:29
CPC Classifications
B; B65; B65D; B65D59/00; B31; B31D; B31D1/00; B31D1/0012; Y; Y10; Y10S; Y10S493/00; Y10S493/968; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T156/1043; Y10T156/1044; Y10T156/1051; Y10T156/1052; Y10T156/1062; Y10T156/1075; Y10T428/00; Y10T428/24; Y10T428/24628
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |