US3101661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
T-runner
Assignee: LOK PRODUCTS Co
•
Filing: 1961-07-18
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Granted: 1963-08-27
•
Expires: 1981-07-18
Abstract
No abstract record available.
Inventors
- 👤 John T Bibb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:22
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/068; E; E04; E04B; E04B9/00; E04B9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
FOR USE IN A CEILING OR THE LIKE, A T-RUNNER HAVING A CENTRAL WEB AND OPPOSITELY PROJECTING LATERAL FLANGES PROVIDED WITH PORTS BETWEEN WHICH SAID WEB IS DISPOSED AT ONE SIDE OF SAID FLANGES, THE RUNNER HAVING MEANS AT THE OTHER SIDE OF THE FLANGES FOR PROVIDING A SLIDE VALVE WAY, AND SLIDE VALVE MEANS RECIPROCABLE ALONG SAID WAY IN ENGAGEMENT WITH SAID FLANGES AND HAVING PORTS MOVABLE TO AND FROM REGISTRY WITH THE PORTS OF THE FLANGES.
Claim 2
Dependent Claim
78 words
FOR USE IN A CEILING OR THE LIKE, A T-RUNNER HAVING A CENTRAL WEB AND OPPOSITELY PROJECTING LATERAL FLANGES PROVIDED WITH PORTS BETWEEN WHICH SAID WEB IS DISPOSED AT ONE SIDE OF SAID FLANGES, THE RUNNER HAVING MEANS AT THE OTHER SIDE OF THE FLANGES FOR PROVIDING A SLIDE VALVE WAY, AND SLIDE VALVE MEANS RECIPROCABLE ALONG SAID WAY IN ENGAGEMENT WITH SAID FLANGES AND HAVING PORTS MOVABLE TO AND FROM REGISTRY WITH THE PORTS OF THE FLANGES.
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |