US2713344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flushing system for vacuum fluid lines and valve therefor
Assignee: PERFECTION Manufacturing CORP
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Filing: 1954-08-11
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Granted: 1955-07-19
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Expires: 1974-08-11
Abstract
No abstract record available.
Inventors
- 👤 Albert F Gallistel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:56
CPC Classifications
A; A01; A01J; A01J7/00; A01J7/02; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4252; Y10T137/8593; Y10T137/86493; Y10T137/86831
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |