Patent US3543368A successfully refreshed from Google Patents.
US3543368A
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Variable capacity fluid discharge device
Assignee: ALFRED S MARLOW
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Filing: 1968-03-26
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Granted: 1970-12-01
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Expires: 1988-03-26
Abstract
No abstract record available.
Inventors
- 👤 Alfred S Marlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:57
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/62; F04D29/628; F04D29/40; F04D29/42; F04D29/44; F04D29/445; F05; F05B; F05B2230/00; F05B2230/60; F05B2230/601; Y; Y10; Y10S; Y10S415/00; Y10S415/912; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316
Claims Analysis
Total Claims: 0
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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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |