US2985468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary fluid connection with side delivery
Assignee: PERFECTING SERVICE CO
•
Filing: 1958-04-21
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Granted: 1961-05-23
•
Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Harmon L Shaw
- 👤 Frank E Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:43
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0018; B23Q1/0027; B23Q1/0036; B23Q11/00; B23Q11/10; F; F16; F16L; F16L27/00; F16L27/08; F16L27/087; Y; Y10; Y10S; Y10S408/00; Y10S408/706; Y10T; Y10T279/00; Y10T279/17; Y10T279/17111; Y10T408/00; Y10T408/44; Y10T408/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1859436A
Cited
US2479711A
Cited
US2561132A
Cited
US2463326A
Cited
US2777702A
Cited
US2709093A
Cited
US2772897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |