Patent US3176569A successfully refreshed from Google Patents.
US3176569A
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Punching apparatus
Assignee: Houdaille Industries Inc
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Filing: 1962-05-14
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Granted: 1965-04-06
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Daniels Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:41
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8742; Y10T83/8771; Y10T83/8821; Y10T83/8858; Y10T83/8864; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9425; Y10T83/9428; Y10T83/9457; Y10T83/9473; Y10T83/9476
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A PUCHING APPARATUS COMPRISING: (A) A RIGID REACTION PRESS; AND (B) A FLUIDLY ACTUATED PUNCHING DEVICE RIGIDLY SUPPORTED BY SAID PRESS ONLY AT A SINGLE SURFACE THEREOF, SAID DEVICE DURING PUNCHING BEING FURTHER ENGAGEABLE
Claim 2
Dependent Claim
34 words
A PUCHING APPARATUS COMPRISING: (A) A RIGID REACTION PRESS; AND (B) A FLUIDLY ACTUATED PUNCHING DEVICE RIGIDLY SUPPORTED BY SAID PRESS ONLY AT A SINGLE SURFACE THEREOF, SAID DEVICE DURING PUNCHING BEING FURTHER ENGAGEABLE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |