US2982104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Canal lining machine
Assignee: A TEICHERT AND SON Inc
•
Filing: 1957-10-25
•
Granted: 1961-05-02
•
Expires: 1977-10-25
Abstract
No abstract record available.
Inventors
- 👤 Walter C Petersen
- 👤 Rue Herschel C La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:45
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/48; E01C19/4866; E01C19/4873; E01C23/00; E01C23/02; E01C23/025; E02; E02B; E02B5/00; E02B5/02; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1416740A
Cited
US2094974A
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US2240236A
Cited
US2311891A
Cited
US2480909A
Cited
US2598903A
Cited
US2645091A
Cited
US2827771A
Cited
US2911892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |