US2697254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry process of manufacturing pressboard
Assignee: Individual
•
Filing: 1950-03-14
•
Granted: 1954-12-21
•
Expires: 1970-03-14
Abstract
No abstract record available.
Inventors
- 👤 Bruce A Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:16
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/24; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1742410A
Cited
US1990554A
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US2130566A
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US2230880A
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US2377484A
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US2288269A
Cited
US2433067A
Cited
GB559974A
Cited
US2446304A
Cited
US2380214A
Cited
US2544019A
Cited
US2480851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |