US2934083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor valve
Assignee: Individual
•
Filing: 1955-10-07
•
Granted: 1960-04-26
•
Expires: 1975-10-07
Abstract
No abstract record available.
Inventors
- 👤 Charles B Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:29
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/16; F04; F04B; F04B39/00; F04B39/10; F04B39/1093; F16K15/1401; F16K15/162; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7559; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7879; Y10T137/7888; Y10T137/7891; Y10T137/7892
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US726277A
Cited
US756868A
Cited
FR456430A
Cited
US1334197A
Cited
US1633772A
Cited
US1632385A
Cited
US1810498A
Cited
US1955007A
Cited
US2682701A
Cited
US2739581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |