US3515170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constriction valve for flexible tubes
Assignee: Corning Glass Works
•
Filing: 1967-12-04
•
Granted: 1970-06-02
•
Expires: 1987-12-04
Abstract
No abstract record available.
Inventors
- 👤 Robert B Mullaly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:04
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056; Y10T137/87064; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1427455A
Cited
US2279693A
Cited
US2313550A
Cited
US2396544A
Cited
US2706994A
Cited
US3411540A
Cited
US3354731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |