Patent US744413A successfully refreshed from Google Patents.
Patent US2852074A successfully refreshed from Google Patents.
US2852074A
Expired / Lapsed
US
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Means for making paper partitions
Assignee: W J BRADFORD PAPER Co
•
Filing: 1953-01-27
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Granted: 1958-09-16
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Expires: 1973-01-27
Abstract
No abstract record available.
Inventors
- 👤 Wahl Otto
- 👤 Charles L Bradford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:54
CPC Classifications
B; B31; B31D; B31D5/00; B31D5/0004; B31D5/0013; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4577; Y10T83/647; Y10T83/6476; Y10T83/6484; Y10T83/6489; Y10T83/6491
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |