US3475002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stressed plastic valve for laboratory glassware
Assignee: EDWIN D PHILLIPS
•
Filing: 1966-10-05
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Granted: 1969-10-28
•
Expires: 1986-10-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin D Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:49
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/56; B01L3/567; F; F16; F16K; F16K5/00; F16K5/04; F16K5/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1024908A
Cited
GB737225A
Cited
FR1133818A
Cited
US2854027A
Cited
US3012752A
Cited
US3185179A
Cited
US3224461A
Cited
US3259358A
Cited
US3325143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |