Patent US3391910A successfully refreshed from Google Patents.
US3391910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase contacting device and packing for use in same
Assignee: Individual
•
Filing: 1967-05-03
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Granted: 1968-07-09
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Expires: 1987-05-03
Abstract
No abstract record available.
Inventors
- 👤 Walter H Prahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:01
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/30; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30223; B01J2219/30257; B01J2219/30265; B01J2219/304; B01J2219/30416; B01J2219/30433; B01J2219/30466; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |