Patent US2689082A successfully refreshed from Google Patents.
US2689082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kolisch
Assignee: —
•
Filing: —
•
Granted: 1954-09-14
•
Expires: 1971-09-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:07
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/40; G01G19/413; G01G19/414; G01G19/415; G01R; G01R17/00; G01R17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1573850A
Cited
US1560046A
Cited
US2025407A
Cited
US2108575A
Cited
US2486068A
Cited
US2431696A
Cited
US2584897A
Cited
US2618209A
Cited
GB652023A
Cited
US2538826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |