US2546808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure dispensing device
Assignee: PREL Inc
•
Filing: 1947-03-22
•
Granted: 1951-03-27
•
Expires: 1967-03-22
Abstract
No abstract record available.
Inventors
- 👤 Geoffrey H Wood
- 👤 Ward Lawrence Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/08; B05B9/0805; B05B9/0833; Y; Y10; Y10S; Y10S239/00; Y10S239/11
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) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |