US2933781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable height sealing unit with reversible underseal strips
Assignee: Individual
•
Filing: 1956-02-14
•
Granted: 1960-04-26
•
Expires: 1976-02-14
Abstract
No abstract record available.
Inventors
- 👤 George W Cornell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:25
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2316
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US104321A
Cited
US340510A
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US350931A
Cited
US653368A
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US1507636A
Cited
US1840879A
Cited
US2345273A
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US2367409A
Cited
US2718677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |