US2838896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Case loader
Assignee: LGL Group Inc
•
Filing: 1954-09-21
•
Granted: 1958-06-17
•
Expires: 1974-09-21
Abstract
No abstract record available.
Inventors
- 👤 John F Currivan
- 👤 William C Kerker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:02
CPC Classifications
B; B65; B65B; B65B21/00; B65B21/02; B65B21/14; B65B21/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1247722A
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US2176246A
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US2277828A
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US2452927A
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US2727664A
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US2678151A
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US2730279A
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US2760316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |