US2486436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contamination control
Assignee: Individual
•
Filing: 1946-05-10
•
Granted: 1949-11-01
•
Expires: 1966-05-10
Abstract
No abstract record available.
Inventors
- 👤 Rothstein Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:22
CPC Classifications
H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; H01J7/183; H01J19/00; H01J19/28; H01J19/30; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/1284; Y10T428/12861; Y10T428/12896; Y10T428/12944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1286089A
Cited
US1712370A
Cited
US1689030A
Cited
US1949849A
Cited
US1871363A
Cited
US1989954A
Cited
US2175345A
Cited
US2275864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |