US2703102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring loaded valve for high-speed air and gas compressors
Assignee: Individual
•
Filing: 1951-12-28
•
Granted: 1955-03-01
•
Expires: 1971-12-28
Abstract
No abstract record available.
Inventors
- 👤 Franz J Neugebauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:38
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/1053; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7779; Y10T137/7837; Y10T137/7838; Y10T137/7839
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1012359A
Cited
US1707306A
Cited
US1682908A
Cited
US1553323A
Cited
US1886190A
Cited
US2124323A
Cited
US2297942A
Cited
US2595986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |