US2873086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orifice fitting
Assignee: Walworth Co
•
Filing: 1953-09-08
•
Granted: 1959-02-10
•
Expires: 1973-09-08
Abstract
No abstract record available.
Inventors
- 👤 Austin U Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:24
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/40; G01F1/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
BE510794A
Cited
US562410A
Cited
US1617503A
Cited
US1957807A
Cited
US2219504A
Cited
US2360733A
Cited
GB671546A
Cited
US2664267A
Cited
US2718372A
Cited
US2780232A
Cited
FR1053141A
Cited
FR1089995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |