US3401607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating bellows
Assignee: MICHAEL L WORTMAN
•
Filing: 1966-08-08
•
Granted: 1968-09-17
•
Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Michael L Wortman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:39
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/04; F16J3/041; B; B05; B05B; B05B13/00; B05B13/02; B05B13/04; B05B13/0405; B05B13/041; E; E05; E05F; E05F15/00; E05F15/50; E05F15/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2101735A
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US2041916A
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US2124735A
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US2292527A
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US2544973A
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US2609177A
Cited
FR1169220A
Cited
US3130963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |