US3244291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timber-carrying grab for overhead crane
Assignee: PUGET SOUND FABRICATORS Inc
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Filing: 1964-01-06
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Granted: 1966-04-05
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Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 George T Dexter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:07
CPC Classifications
B; B66; B66C; B66C19/00; B66C13/00; B66C2700/00; B66C2700/01; B66C2700/012; B66C2700/017
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
CRAB MECHANISM FOR A BRIDGE CRANE, COMPRISING TWO CLAMPING MEMBERS, MEANS SUPPORTING AND GUIDING SAID TWO CLAMPING MEMBERS FOR RELATIVE SUBSTANTIALLY HORIZONTAL MOVEMENT TOWARD AND AWAY FROM ACH OTHER, TWO PULLING LINE MEANS EXTENDING, RESPECTIVELY, FROM EACH OF SAID TWO CLAMPING MEMBERS TOWARD THE OTHER CLAMPING MEMBER, ACTUATOR MEANS CONNECTED TO BOTH OF SAID PULLING LINE MEANS AND OPERABLE TO PULL SAID TWO PULLING LINE MEANS SIMULTANEOUSLY FOR MOVING SAID TWO CLAMPING MEMBERS TOWARD EACH OTHER, AND TWO HAULBACK LINE MEANS EXTENDING RESPECTIVELY, FROM THE SIDE OF EACH CLAMPING MEMBER REMOTE FROM THE OTHER CLAMPING MEMBER AND CONNECTED
Claim 2
Dependent Claim
98 words
CRAB MECHANISM FOR A BRIDGE CRANE, COMPRISING TWO CLAMPING MEMBERS, MEANS SUPPORTING AND GUIDING SAID TWO CLAMPING MEMBERS FOR RELATIVE SUBSTANTIALLY HORIZONTAL MOVEMENT TOWARD AND AWAY FROM ACH OTHER, TWO PULLING LINE MEANS EXTENDING, RESPECTIVELY, FROM EACH OF SAID TWO CLAMPING MEMBERS TOWARD THE OTHER CLAMPING MEMBER, ACTUATOR MEANS CONNECTED TO BOTH OF SAID PULLING LINE MEANS AND OPERABLE TO PULL SAID TWO PULLING LINE MEANS SIMULTANEOUSLY FOR MOVING SAID TWO CLAMPING MEMBERS TOWARD EACH OTHER, AND TWO HAULBACK LINE MEANS EXTENDING RESPECTIVELY, FROM THE SIDE OF EACH CLAMPING MEMBER REMOTE FROM THE OTHER CLAMPING MEMBER AND CONNECTED
References Cited (Backward Citations)
US729251A
Cited
US1287336A
Cited
US2284238A
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US2634979A
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US2699879A
Cited
US2964459A
Cited
US3088505A
Cited
US2941675A
Cited
US3104016A
Cited
US3076673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |