Patent US3207222A successfully refreshed from Google Patents.
US3207222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device and running tool therefor
Assignee: Otis Engineering Corp
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Filing: 1962-01-30
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Granted: 1965-09-21
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Expires: 1982-01-30
Abstract
No abstract record available.
Inventors
- 👤 Jack W Tamplen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:08
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A LOCKING DEVICE INCLUDING: A MANDREL; A DOG CARRIER SECURED TO SAID MANDREL AND HAVING A PORTION IN SPACED RELATION THERETO; A PLURALITY OF LOCKING DOGS DISPOSED BETWEEN SAID MANDREL AND SAID DOG CARRIER AND HELD BY SAID DOG CARRIER AGAINST DISPLACEMENT FROM SAID MANDREL, SAID DOG CARRIER HAVING LATERALLY OUTWARDLY OPENING APERTURES, SAID DOGS HAVING OUTWARDLY EXTENDING BOSSES AT THEIR LOWER ENDS MOVABLE OUTWARDLY OF THE DOG CARRIER THROUGH SAID APERTURES, SAID DOGS HAVING PIVOT MEANS INTERMEDIATE THEIR UPPER AND LOWER ENDS ENGAGEABLE WITH THE MANDREL WHEREBY THE LOWER ENDS OF SAID DOGS MAY BE PIVOTED ABOUT SAID PIVOT MEANS BETWEEN RETRACTED POSITIONS WHEREIN THE BOSSES DO NOT EXTEND OUTWARDLY OF SAID DOG CARRIER AND EXPANDED POSITION WHEREIN THE SAID BOSSES EXTEND OUTWARDLY OF SAID DOG CARRIER.
Claim 2
Dependent Claim
128 words
A LOCKING DEVICE INCLUDING: A MANDREL; A DOG CARRIER SECURED TO SAID MANDREL AND HAVING A PORTION IN SPACED RELATION THERETO; A PLURALITY OF LOCKING DOGS DISPOSED BETWEEN SAID MANDREL AND SAID DOG CARRIER AND HELD BY SAID DOG CARRIER AGAINST DISPLACEMENT FROM SAID MANDREL, SAID DOG CARRIER HAVING LATERALLY OUTWARDLY OPENING APERTURES, SAID DOGS HAVING OUTWARDLY EXTENDING BOSSES AT THEIR LOWER ENDS MOVABLE OUTWARDLY OF THE DOG CARRIER THROUGH SAID APERTURES, SAID DOGS HAVING PIVOT MEANS INTERMEDIATE THEIR UPPER AND LOWER ENDS ENGAGEABLE WITH THE MANDREL WHEREBY THE LOWER ENDS OF SAID DOGS MAY BE PIVOTED ABOUT SAID PIVOT MEANS BETWEEN RETRACTED POSITIONS WHEREIN THE BOSSES DO NOT EXTEND OUTWARDLY OF SAID DOG CARRIER AND EXPANDED POSITION WHEREIN THE SAID BOSSES EXTEND OUTWARDLY OF SAID DOG CARRIER.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |