US3333412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-clawed shortening hook
Assignee: Individual
•
Filing: 1963-09-23
•
Granted: 1967-08-01
•
Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Rieger Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:00
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/34; B66C1/36; F; F16; F16G; F16G17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A SHORTENING HOOK FOR CHAINS COMPRISING A ONE-PIECE FORGING INCLUDING A CENTRAL PORTION AND SIDE PORTIONS EXTENDING SYMMETRICALLY FROM OPPOSITE SIDES OF SAID CENTRAL PORTION AND EACH HAVING A HOOK-SHAPED LOWER PART, SAID SIDE PORTIONS BEING FOLDED ABOUT THE LONGITUDINAL MEDIAL LINE OF SAID CENTRAL PORTION INTO SUBSTANTIALLY PARALLEL, LATERALLY SPACED PLANES AT WHICH SAID HOOK-SHAPED PARTS OF THE SIDE PORTION DEFINE A FORKED-CLAW FOR ENGAGING A CHAIN LINK.
Claim 2
Dependent Claim
69 words
A SHORTENING HOOK FOR CHAINS COMPRISING A ONE-PIECE FORGING INCLUDING A CENTRAL PORTION AND SIDE PORTIONS EXTENDING SYMMETRICALLY FROM OPPOSITE SIDES OF SAID CENTRAL PORTION AND EACH HAVING A HOOK-SHAPED LOWER PART, SAID SIDE PORTIONS BEING FOLDED ABOUT THE LONGITUDINAL MEDIAL LINE OF SAID CENTRAL PORTION INTO SUBSTANTIALLY PARALLEL, LATERALLY SPACED PLANES AT WHICH SAID HOOK-SHAPED PARTS OF THE SIDE PORTION DEFINE A FORKED-CLAW FOR ENGAGING A CHAIN LINK.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |