US2941830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic seal and method of making same
Assignee: Individual
•
Filing: 1957-01-22
•
Granted: 1960-06-21
•
Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 John F Burke
- 👤 Lollis Nicholas J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:41
CPC Classifications
B; B65; B65D; B65D53/00; B65D53/02; B29; B29C; B29C65/00; B29C65/48; B29C66/00; B29C66/70; B29C66/73; B29C66/737; B29C66/7375; B29C66/73755; B29C66/739; B29C66/7392; B29C66/7394; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5344; B29C66/71; B29C66/712; Y; Y10; Y10S; Y10S277/00; Y10S277/922; Y10S277/924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308330A
Cited
US1977876A
Cited
US2433425A
Cited
US2565803A
Cited
US2626167A
Cited
US2663910A
Cited
US2724868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |