Patent US3339593A successfully refreshed from Google Patents.
US3339593A
Expired / Lapsed
US
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Spring assembling machine
Assignee: Kay Manufacturing Corp
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Filing: 1965-05-07
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Granted: 1967-09-05
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Expires: 1985-05-07
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Krakauer
- 👤 Krakauer Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:32
CPC Classifications
B; B21; B21F; B21F33/00; B21F33/04; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53687; Y10T29/53691
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
IN A SPRING ASSEMBLING MACHINE, MEANS FOR INTERMITTENTLY FORMING AND INTERMITTENTLY ADVANCING A HELICAL, A JAW UNIT HAVING CLOSEABLE SPRING-HOLDING JAWS, MEANS RESPONSIVE TO THE INSERTION OF A SPRING INTO THE MACHINE FOR CLOSING THE JAWS AND MEANS RESPONSIVE TO THE CLOSING OF THE JAWS FOR CONTROLLING THE INTERMITTENT OPERATION OF THE FIRST MENTIONED MEANS.
Claim 2
Dependent Claim
55 words
IN A SPRING ASSEMBLING MACHINE, MEANS FOR INTERMITTENTLY FORMING AND INTERMITTENTLY ADVANCING A HELICAL, A JAW UNIT HAVING CLOSEABLE SPRING-HOLDING JAWS, MEANS RESPONSIVE TO THE INSERTION OF A SPRING INTO THE MACHINE FOR CLOSING THE JAWS AND MEANS RESPONSIVE TO THE CLOSING OF THE JAWS FOR CONTROLLING THE INTERMITTENT OPERATION OF THE FIRST MENTIONED MEANS.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |