US3094095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for raising anchors
Assignee: Individual
•
Filing: 1961-06-05
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Granted: 1963-06-18
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 Walter R Litchfield
- 👤 Robert R Litchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:32
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
AN ANCHOR RAISING DEVICE COMPRISING A RING MEMBER ADAPTED TO BE SECURED TO AN ANCHOR LINE AT A POINT INTERMEDIATE THE ENDS THEREOF FOR SLIDING MOVEMENT ALONG SAID LINE, SAID RING MEMBER HAVING A CENTRAL OPENING AND MEANS FOR PROVIDING ACCESS TO SAID OPENING FROM A DIRECTION TRANSVERSE TO THE AXIS OF SAID OPENING TO PERMIT ATTACHMENT AND DETACHMENT OF SAID RING ON SAID ANCHOR LINE AT SAID POINT, A SUBMERSIBLE ENCLOSED BUOYANT MEMBER, AND NON-ELASTIC CONNECTING MEANS SECURED AT ONE END TO SAID RING MEMBER AND AT THE OTHER END TO SAID BUOYANT MEMBER AT A CENTRALLY DISPOSED POINT ON THE FORWARD END THEREOF, SAID CONNECTING MEANS INCLUDING A SWIVEL CONNECTION TO PERMIT FREE SPINNING ROTATION OF SAID BUOYANT MEMBER WITH RESPECT TO SAID RING MEMBER.
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |