Patent US3370557A successfully refreshed from Google Patents.
US3370557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supports for roof and the like
Assignee: John G Stein and Co Ltd
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Filing: 1966-03-14
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Granted: 1968-02-27
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Expires: 1986-03-14
Abstract
No abstract record available.
Inventors
- 👤 Birse Alexander Low
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:19
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/14; F27D1/141; F27D1/142; F23; F23M; F23M5/00; F23M5/06; F27D1/02; F27D1/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
FOR USE IN SUPPORTING A MONOLITHIC REFRACTORY STRUCTURE, A HANGER BRICK WITH A RECTANGULAR HEAD PRESENTING SIDE AND END FACES, SAID END FACES BEING FORMED WITH RECESSES TO RECEIVE THE BASES OF U-SHAPED CLIPS, THE ARMS OF WHICH EXTEND ALONG THE SIDE WALL AND TERMINATE IN HOOKS, SAID BRICK BEING FORMED WITH TWO FURTHER RECESSES EACH
Claim 2
Dependent Claim
56 words
FOR USE IN SUPPORTING A MONOLITHIC REFRACTORY STRUCTURE, A HANGER BRICK WITH A RECTANGULAR HEAD PRESENTING SIDE AND END FACES, SAID END FACES BEING FORMED WITH RECESSES TO RECEIVE THE BASES OF U-SHAPED CLIPS, THE ARMS OF WHICH EXTEND ALONG THE SIDE WALL AND TERMINATE IN HOOKS, SAID BRICK BEING FORMED WITH TWO FURTHER RECESSES EACH
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |