US3153897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain
Assignee: Individual
•
Filing: 1961-12-26
•
Granted: 1964-10-27
•
Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Richard A Kummerer
- 👤 Joseph T Chester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:43
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/02; F16G13/06; F16G13/07; B; B21; B21L; B21L9/00; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A METHOD OF FORMING A CHAIN LINK FROM AN ELONGATED METAL STRAP HAVING OPPOSITE ELONGATED PARALLEL EDGES EXTENDING BETWEEN ENDS OF THE STRAP COMPRISING: FORMING A CENTRAL PORTION ARCUATELY ABOUT AN AXIS SUBSTANTIALLY PARALLEL TO THE PLANE OF THE STRAP AND BENDING THE STRAP INTO A U-SHAPED MEMBER WITH OPPOSITELY DISPOSED LEG PORTIONS INTERCONNECTED BY THE AFORESAID CENTRAL PORTION EXTENDING ACROSS ONE END; PLACING THE U-SHAPED MEMBER ON A DIE; FORCING THE CENTRAL PORTION AND LEG PORTIONS TO CONTACT THE DIE IN A PREDETERMINED POSITION; AND FORMING TRANSVERSELY ALIGNED HOLES AT THE FREE ENDS OF THE LEG PORTIONS AND TRANSVERSELY ALIGNED HOLES IN THE LEG PORTIONS CLOSELY ADJACENT THE CENTRAL PORTION.
Claim 2
Independent Claim
111 words
A METHOD OF FORMING A CHAIN LINK FROM AN ELONGATED METAL STRAP HAVING OPPOSITE ELONGATED PARALLEL EDGES EXTENDING BETWEEN ENDS OF THE STRAP COMPRISING: FORMING A CENTRAL PORTION ARCUATELY ABOUT AN AXIS SUBSTANTIALLY PARALLEL TO THE PLANE OF THE STRAP AND BENDING THE STRAP INTO A U-SHAPED MEMBER WITH OPPOSITELY DISPOSED LEG PORTIONS INTERCONNECTED BY THE AFORESAID CENTRAL PORTION EXTENDING ACROSS ONE END; PLACING THE U-SHAPED MEMBER ON A DIE; FORCING THE CENTRAL PORTION AND LEG PORTIONS TO CONTACT THE DIE IN A PREDETERMINED POSITION; AND FORMING TRANSVERSELY ALIGNED HOLES AT THE FREE ENDS OF THE LEG PORTIONS AND TRANSVERSELY ALIGNED HOLES IN THE LEG PORTIONS CLOSELY ADJACENT THE CENTRAL PORTION.
References Cited (Backward Citations)
US2732015A
Cited
US2272837A
Cited
US2594552A
Cited
US2729935A
Cited
US2793536A
Cited
US2938329A
Cited
US3063237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |