US2873761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control apparatus
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1956-07-25
•
Granted: 1959-02-17
•
Expires: 1976-07-25
Abstract
No abstract record available.
Inventors
- 👤 Tailleferre Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:28
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/16; F16K3/18; F16K3/188; F16K51/00; F16K51/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/8696; Y10T137/87016; Y10T137/87096; Y10T137/87121
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) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |