Patent US3231303A successfully refreshed from Google Patents.
US3231303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable grapple
Assignee: Individual
•
Filing: 1963-04-01
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Granted: 1966-01-25
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Robert G Letourneau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:53
CPC Classifications
B; B66; B66C; B66C3/00; B66C3/14; B66C3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A GRAPPLE COMPRISING: SUPPORT MEANS; A BULL GEAR HAVING A HUB JOURNALED TO SAID SUPPORT MEANS FOR ROTATION ABOUT THE CENTRAL AXIS; A PIN EXTENDING AXIALLY THROUGH SAID HUB AND HAVING AN ENLARGED UPPER END PORTION FRICTIONALLY ENGAGING AND SUPPORTED ON SAID HUB; A GRAPPLE MECHANISM ROTATABLY MOUNTED ON SAID PIN ADJACENT THE
Claim 2
Dependent Claim
53 words
A GRAPPLE COMPRISING: SUPPORT MEANS; A BULL GEAR HAVING A HUB JOURNALED TO SAID SUPPORT MEANS FOR ROTATION ABOUT THE CENTRAL AXIS; A PIN EXTENDING AXIALLY THROUGH SAID HUB AND HAVING AN ENLARGED UPPER END PORTION FRICTIONALLY ENGAGING AND SUPPORTED ON SAID HUB; A GRAPPLE MECHANISM ROTATABLY MOUNTED ON SAID PIN ADJACENT THE
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |