Patent US3402642A successfully refreshed from Google Patents.
US3402642A
Expired / Lapsed
US
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Reciprocating valve and piston
Assignee: Huck Manufacturing Co
•
Filing: 1965-10-23
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Granted: 1968-09-24
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 George J Van Hecke
- 👤 Chirco Peter Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:52
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/10; B21J15/16; B21J15/22; F; F15; F15B; F15B11/00; F15B11/08; F15B11/15; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86879
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE325269C
Cited
US1839540A
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US1861442A
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US2555018A
Cited
US3276381A
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US3261265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |