US2847235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Correspondence form
Assignee: Individual
•
Filing: 1956-03-06
•
Granted: 1958-08-12
•
Expires: 1976-03-06
Abstract
No abstract record available.
Inventors
- 👤 Blumenthal Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:33
CPC Classifications
B; B41; B41L; B41L1/00; B41L1/20; B41L1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1762084A
Cited
US2120161A
Cited
US2316757A
Cited
US2304517A
Cited
US2553813A
Cited
US2653831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |