US3423490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing unitary foam rubber articles
Assignee: Day International Corp
•
Filing: 1966-04-20
•
Granted: 1969-01-21
•
Expires: 1986-04-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas Trogdon
- 👤 Russell E Fultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:26
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/0461; B29C44/0469; B29C33/00; B29C33/0033; B29L; B29L2031/00; B29L2031/58; B29L2031/751
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US929938A
Cited
AU576432A
Cited
US2150287A
Cited
US2432353A
Cited
GB763733A
Cited
US3320339A
Cited
US3287748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |