US3431331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticlogging breathable mold and method
Assignee: Leggett and Platt Inc
•
Filing: 1965-02-16
•
Granted: 1969-03-04
•
Expires: 1985-02-16
Abstract
No abstract record available.
Inventors
- 👤 Seymour Pincus
- 👤 Edwin G Krakauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:14
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/58; B29C44/588; B29C33/00; B29C33/10; B29C33/12; B29C33/38; B29C33/40; B29L; B29L2031/00; B29L2031/751; Y; Y10; Y10S; Y10S425/00; Y10S425/812; Y10S425/814
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2858572A
Cited
US2898634A
Cited
US2955972A
Cited
US3082486A
Cited
US3080613A
Cited
US3137743A
Cited
US3078508A
Cited
US3258511A
Cited
US3253064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |