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US2833353A
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Assignee: IDECO Inc
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Filing: 1954-06-01
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Granted: 1958-05-06
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Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 George W Walton
- 👤 Donald L Mccarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:43
CPC Classifications
E; E21; E21B; E21B31/00; E21B31/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2431361A
Cited
US2595632A
Cited
US2556849A
Cited
US2657752A
Cited
FR1056811A
Cited
US2668077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |