US2352932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1942-04-03
•
Granted: 1944-07-04
•
Expires: 1962-04-03
Abstract
No abstract record available.
Inventors
- 👤 Elliott P Barrett
- 👤 James R West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:52
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/20; B01J20/04; B01J20/041; B01J20/048; B01J20/10; B01J20/12; B01J20/30; B01J20/3007; B01J20/3028; B01J20/3078; B01J2220/00; B01J2220/40; B01J2220/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-07-04 | 1948-01-03 | 1948-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-04 | 1952-01-03 | 1952-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-04 | 1956-01-03 | 1956-07-04 | $7700.00 | Window Closed / Lapsed |