US2766772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve apparatus
Assignee: CARBONIC DISPENSER Inc
•
Filing: 1952-04-17
•
Granted: 1956-10-16
•
Expires: 1972-04-17
Abstract
No abstract record available.
Inventors
- 👤 Welty Frank
- 👤 Raymond D Welty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:49
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/0042; B67D1/0081; B67D1/0082; B67D1/0083; B67D1/0043; B67D1/0044; B67D1/0046; B67D1/0049; B67D1/08; B67D1/12; B67D1/14; B67D1/1405; B67D1/145; B67D1/1455; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/87016; Y10T137/87024; Y10T137/87571; Y10T137/87652; Y10T137/8766; Y10T137/87668; Y10T137/87676; Y10T137/87684; Y10T137/87692; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/1896; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |