Patent US2818853A successfully refreshed from Google Patents.
US2818853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator
Assignee: CONITECH Ltd
•
Filing: 1955-11-15
•
Granted: 1958-01-07
•
Expires: 1975-11-15
Abstract
No abstract record available.
Inventors
- 👤 Iii Thomas C Huxley
- 👤 Isreeli Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:52
CPC Classifications
A; A61; A61H; A61H9/00; A61H9/005; A61H9/0078; A61H31/00; A61H31/004; A61H31/006; A61H2201/00; A61H2201/01; A61H2201/0103; A61H2201/12; A61H2201/1238; A61H2201/16; A61H2201/1602; A61H2201/165; A61H2201/50; A61H2201/5058; A61H2205/00; A61H2205/08; A61H2205/083
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |