US3394938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record changer
Assignee: Thomas International Corp
•
Filing: 1964-10-08
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Granted: 1968-07-30
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Expires: 1984-10-08
Abstract
No abstract record available.
Inventors
- 👤 Martin C Reed
- 👤 William R Baillie
- 👤 Bert L Altmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:56
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/08; G11B17/12; G11B17/16; G11B17/162; G11B17/165; A; A47; A47L; A47L11/00; A47L11/29; A47L11/30; A47L11/302
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2578378A
Cited
US2637558A
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US2738193A
Cited
US2794647A
Cited
US2989312A
Cited
US3240498A
Cited
US3197212A
Cited
US3279798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |