Patent US3217291A successfully refreshed from Google Patents.
US3217291A
Expired / Lapsed
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Anchor drift alarm
Assignee: Individual
•
Filing: 1963-10-17
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Granted: 1965-11-09
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Expires: 1983-10-17
Abstract
No abstract record available.
Inventors
- 👤 John H King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:23
CPC Classifications
H; H02; H02G; H02G11/00; H02G11/02; B; B63; B63B; B63B21/00; B63B21/22; B63B2021/003; B63B2021/009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A DRIFT ALARM DEVICE FOR VESSELS COMPRISING AN ANCHOR LINE HAVING A WEIGHTED ANCHOR ATTACHED THERETO, REEL MEANS FOR HOLDING SAID DISPENSING SAID LINE IN RESPONSE TO LINAR MOVEMENT OF SAID VESSEL WITH RESPECT TO ITS INITIAL POSITION, TRACKING MEANS FOR TRACKING THE ROTARY MOVEMENT OF SAID REEL WHILE DISPENSING SAID LINE, AND ALARM ACTUATING MEANS RESPONSIVE TO SAID TRACKING MEANS UPON MOVEMENT THROUGH A PREDETERMINED DISTANCE OF SAID TRACKING MEANS.
Claim 2
Dependent Claim
71 words
A DRIFT ALARM DEVICE FOR VESSELS COMPRISING AN ANCHOR LINE HAVING A WEIGHTED ANCHOR ATTACHED THERETO, REEL MEANS FOR HOLDING SAID DISPENSING SAID LINE IN RESPONSE TO LINAR MOVEMENT OF SAID VESSEL WITH RESPECT TO ITS INITIAL POSITION, TRACKING MEANS FOR TRACKING THE ROTARY MOVEMENT OF SAID REEL WHILE DISPENSING SAID LINE, AND ALARM ACTUATING MEANS RESPONSIVE TO SAID TRACKING MEANS UPON MOVEMENT THROUGH A PREDETERMINED DISTANCE OF SAID TRACKING MEANS.
References Cited (Backward Citations)
US230743A
Cited
US720015A
Cited
US2161273A
Cited
US2369054A
Cited
US2396453A
Cited
US2507078A
Cited
US2685742A
Cited
US2810120A
Cited
US3011261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |