USRE27616E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device for fire hydrants
Assignee: —
•
Filing: 1971-02-01
•
Granted: 1973-04-17
•
Expires: 1991-02-01
Abstract
Abstract A DEVICE IS PROVIDED FOR PREVENTING THE UNAUTHORIZED OPERATION OF FIRE HYDRANTS BY CONCEALING THE HEXAGONAL MEMBER OR NUT WHICH PERMITS THE OPERATION OF THE FIRE HYDRANT AND PERMITTING ONLY A LIMITED ACCESS THERETO. THE NUT IS CONCEALED BY CONNECTING THERETO A FIRST MEMBER WHICH IS FIXED THEREON BOTH AXIALLY AND ROTATABLY AND BY SUPPORTING ON THIS FIRST MEMBER A FREELY ROTATABLE MEMBER WHICH CONCEALS THE FIRST MEMBER AND PREVENTS A ROTATIVE FORCE FROM BEING APPLIED TO THE NUT. A SPECIAL WRENCH IS PROVIDED WHICH ENABLES AUTHORIZED ENGAGEMENT OF THE NUT THROUGH THE LIMITED ACCESS WHICH IS PROVIDED.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:07
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/06; E; E03; E03B; E03B9/00; E03B9/02; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T137/7065; Y10T292/00; Y10T292/82
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |