US3178240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible heel blocks
Assignee: Individual
•
Filing: 1961-09-18
•
Granted: 1965-04-13
•
Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 James D Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:29
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/10; B21D37/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A DIE CONSTRUCTION, COMPRISING: A PAIR OF DIES HAVING OPPOSED SURFACES WHICH ARE SPACED APART AND WHICH ARE SLIDABLE RELATIVE TO EACH OTHER; SHIM MEANS HAVING TWO OPPOSITELY FACING SURFACES WHICH RESPECTIVELY FACE SAID OPPOSED DIE SURFACES, ONE OF SAID SHIM SURFACES BEING PRECISELY SHAPED TO CLOSELY FIT ONE OF SAID OPPOSED DIE SURFACES AND BEING SECURED TO AND DISPOSED IN CONTIGUOUS RELATIONSHIP THEREWITH, THE OTHER OF SAID SHIM SURFACES BEING SPACED FROM THE OTHER OPPOSED DIE SURFACE, SAID SHIM MEANS BEING FORMED OF A READILY MACHINABLE MATERIAL SO THAT SAID ONE SHIM SURFACE CAN BE EASILY AND PRECISELY SHAPED;
Claim 2
Dependent Claim
100 words
A DIE CONSTRUCTION, COMPRISING: A PAIR OF DIES HAVING OPPOSED SURFACES WHICH ARE SPACED APART AND WHICH ARE SLIDABLE RELATIVE TO EACH OTHER; SHIM MEANS HAVING TWO OPPOSITELY FACING SURFACES WHICH RESPECTIVELY FACE SAID OPPOSED DIE SURFACES, ONE OF SAID SHIM SURFACES BEING PRECISELY SHAPED TO CLOSELY FIT ONE OF SAID OPPOSED DIE SURFACES AND BEING SECURED TO AND DISPOSED IN CONTIGUOUS RELATIONSHIP THEREWITH, THE OTHER OF SAID SHIM SURFACES BEING SPACED FROM THE OTHER OPPOSED DIE SURFACE, SAID SHIM MEANS BEING FORMED OF A READILY MACHINABLE MATERIAL SO THAT SAID ONE SHIM SURFACE CAN BE EASILY AND PRECISELY SHAPED;
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |