US3062271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic addition of flow signals
Assignee: Shell USA Inc
•
Filing: 1961-03-28
•
Granted: 1962-11-06
•
Expires: 1981-03-28
Abstract
No abstract record available.
Inventors
- 👤 Johannes E Rijnsdorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:43
CPC Classifications
F; F23; F23N; F23N1/00; F23N1/007; F15; F15C; F15C3/00; F15C3/10; F15C3/14; F22; F22B; F22B35/00; F23N2225/00; F23N2225/04; F23N2237/00; F23N2237/08; F23N5/00; F23N5/18; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0352; Y10T137/2496; Y10T137/2514; Y10T137/2521
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2418388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |