Patent US3158236A successfully refreshed from Google Patents.
US3158236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire resistant studs
Assignee: Individual
•
Filing: 1963-03-12
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Granted: 1964-11-24
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Expires: 1983-03-12
Abstract
No abstract record available.
Inventors
- 👤 Henry P Caligiuri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:39
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/941; E04B1/943
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
AS AN ARTICLE OF MANUFACTURE A TUBULAR INTEGRAL SHEET METAL PARTITION STUD FOR SEPARATING ROOMS, HAVING APERTURES IN THE OPPOSING SIDES THEREOF AND A PLANAR, NONAPERTURED, FLEXIBLE REMOVEABLY DISPOSED FIREWALL DISPOSED SUBSTANTIALLY DIAGONALLY BETWEEN AND ENGAGING IN HERMETICALLY SEALED RELATIONSHIP SAID OPPOSING SIDES, SAID PLANAR FIREWALL BEING OF A SLIGHTLY LARGER DIMENSION THAN THE DIAGONAL DIMENSION OF THE STUD SO THAT THE FIREWALL IS BENT WHEN INSERTED INTO SAID STUD AND UPON RELEASE OF THE BENT SHAPE A SPRING TENSION ENGAGEMENT OF SAID FIREWALL AND SAID STUD IS OBTAINED.
Claim 2
Dependent Claim
89 words
AS AN ARTICLE OF MANUFACTURE A TUBULAR INTEGRAL SHEET METAL PARTITION STUD FOR SEPARATING ROOMS, HAVING APERTURES IN THE OPPOSING SIDES THEREOF AND A PLANAR, NONAPERTURED, FLEXIBLE REMOVEABLY DISPOSED FIREWALL DISPOSED SUBSTANTIALLY DIAGONALLY BETWEEN AND ENGAGING IN HERMETICALLY SEALED RELATIONSHIP SAID OPPOSING SIDES, SAID PLANAR FIREWALL BEING OF A SLIGHTLY LARGER DIMENSION THAN THE DIAGONAL DIMENSION OF THE STUD SO THAT THE FIREWALL IS BENT WHEN INSERTED INTO SAID STUD AND UPON RELEASE OF THE BENT SHAPE A SPRING TENSION ENGAGEMENT OF SAID FIREWALL AND SAID STUD IS OBTAINED.
References Cited (Backward Citations)
FR921439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |