Patent US2994119A successfully refreshed from Google Patents.
US2994119A
Expired / Lapsed
US
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Machine for making concrete conduit
Assignee: Gagne Enterprises Inc
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Filing: 1957-05-15
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Granted: 1961-08-01
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Expires: 1977-05-15
Abstract
No abstract record available.
Inventors
- 👤 Archie R Gagne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:02
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/02; B28B21/10; B28B21/14; B28B21/16; B28B21/22; B28B21/24; B28B21/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US332047A
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US392069A
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US395095A
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US1363912A
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US1488644A
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US2193879A
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US2614312A
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GB668023A
Cited
US2717435A
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US2723436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |