US2826630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic crystal holder
Assignee: Individual
•
Filing: 1952-07-25
•
Granted: 1958-03-11
•
Expires: 1972-07-25
Abstract
No abstract record available.
Inventors
- 👤 Klebanoff Michael
- 👤 Mannes N Glickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:10
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/10; H03H9/1007; H03H9/1014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2459193A
Cited
US2503429A
Cited
US2454244A
Cited
US2416067A
Cited
US2514976A
Cited
US2445719A
Cited
US2627538A
Cited
US2577576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |