US3534860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure seal-manifold unit
Assignee: General Electric Co
•
Filing: 1968-11-29
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Granted: 1970-10-20
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Expires: 1988-11-29
Abstract
No abstract record available.
Inventors
- 👤 Norman R Dibelius
- 👤 Alfred E Dreves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:50
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/08; B01D63/082; B01D2313/00; B01D2313/10; B01D2313/12
Claims Analysis
Total Claims: 0
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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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |