US2989251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined valve stem and operating button for pressure packed materials
Assignee: Precision Valve Corp
•
Filing: 1957-07-05
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Granted: 1961-06-20
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Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
- 👤 Robert H Abplanalp
- 👤 John R Focht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:03
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/34; B05B1/3405; B05B1/341; B05B1/3421; B05B1/3431; B05B1/3436; B65; B65D; B65D83/00; B65D83/14; B65D83/16; B65D83/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2692166A
Cited
US2693983A
Cited
US2702957A
Cited
US2801029A
Cited
US2789012A
Cited
US2906461A
Cited
US2767023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |