Patent US2539991A successfully refreshed from Google Patents.
Patent US3512286A successfully refreshed from Google Patents.
US3512286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identifying credit card
Assignee: Dubow Chemical Corp
•
Filing: 1967-09-07
•
Granted: 1970-05-19
•
Expires: 1987-09-07
Abstract
No abstract record available.
Inventors
- 👤 Louis S Siegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:58
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/20; B42D25/40; B42D25/405; B42D25/425; B42D25/30; B42D25/309; B42D25/318; B42D2033/02; B42D2033/04; B42D2035/02; B42D2035/06; B42D2035/08; B42D25/324
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US147289A
Cited
US751247A
Cited
US2165250A
Cited
US2604710A
Cited
US2512106A
Cited
US2835993A
Cited
US2984030A
Cited
US3224130A
Cited
US3267599A
Cited
US3357121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |