US2850984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor expelling pump
Assignee: Individual
•
Filing: 1956-02-13
•
Granted: 1958-09-09
•
Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Donald P Shiley
- 👤 Edwards Miles Lowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:31
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/001; F04D9/002; F04D29/00; F04D29/60; F04D29/605; F04D29/606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2736266A
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US2444100A
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US2439577A
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US2422956A
Cited
US2660120A
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US2699907A
Cited
US2761393A
Cited
US2760437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |