US3079823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Off-set ejector for punch dies
Assignee: Individual
•
Filing: 1958-07-07
•
Granted: 1963-03-05
•
Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 Paul R Ekstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:47
CPC Classifications
B; B21; B21D; B21D45/00; B21D45/003; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2135; Y10T83/215; Y10T83/2153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
AN EJECTOR FOR A PUNCH DIE HAVING A SLUG OPENING THERETHROUGH, COMPRISING A CYLINDRICAL CHAMBER FORMED IN SAID DIE IN LATERALLY SPACED RELATION TO THE SLUG OPENING, A BORE OF REDUCED DIAMETER FORMED IN SAID DIE AND HAVING AN AXIS IN PARALLEL SPACED RELATION TO THE AXIS OF SAID CHAMBER AND OPENING TO SAID CHAMBER AND TO A POINT UNDERLYING A PORTION OF THE WORK TO BE MOUNTED IN SAID DIE, A CYLINDRICAL PISTON MOUNTED FOR AXIAL RECIPROCATION IN SAID CHAMBER TOWARD AND AWAY FROM SAID BORE, AN EJECTOR PIN CARRIED BY SAID PISTON FOR RECIPROCATING MOVE-
Claim 2
Dependent Claim
97 words
AN EJECTOR FOR A PUNCH DIE HAVING A SLUG OPENING THERETHROUGH, COMPRISING A CYLINDRICAL CHAMBER FORMED IN SAID DIE IN LATERALLY SPACED RELATION TO THE SLUG OPENING, A BORE OF REDUCED DIAMETER FORMED IN SAID DIE AND HAVING AN AXIS IN PARALLEL SPACED RELATION TO THE AXIS OF SAID CHAMBER AND OPENING TO SAID CHAMBER AND TO A POINT UNDERLYING A PORTION OF THE WORK TO BE MOUNTED IN SAID DIE, A CYLINDRICAL PISTON MOUNTED FOR AXIAL RECIPROCATION IN SAID CHAMBER TOWARD AND AWAY FROM SAID BORE, AN EJECTOR PIN CARRIED BY SAID PISTON FOR RECIPROCATING MOVE-
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |