US2680469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for manufacturing carpets
Assignee: ALFRED VALENTIN CHAMPAGNAT
•
Filing: 1950-10-17
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Granted: 1954-06-08
•
Expires: 1970-10-17
Abstract
No abstract record available.
Inventors
- 👤 Ahier George Charles
- 👤 Krull Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:24
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/07; D04H3/073; D04H11/00; D04H3/04; D04H3/045; D04H3/08; D04H3/12; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T156/1085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195951A
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US1195949A
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US939839A
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US1338164A
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US1850301A
Cited
US2266761A
Cited
US2475019A
Cited
US2588130A
Cited
US2583337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |