Patent US4538188A successfully refreshed from Google Patents.
US2942831A
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Assignee: Personal Products Co
•
Filing: 1954-10-21
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Granted: 1960-06-28
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Expires: 1974-10-21
Abstract
No abstract record available.
Inventors
- 👤 Warren E Adams
- 👤 George C Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:21
CPC Classifications
B; B42; B42F; B42F15/00; B42F15/007; A; A47; A47F; A47F5/00; A47F5/0043; A47F5/0068
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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |