US2590108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorine counter
Assignee: Individual
•
Filing: 1948-04-30
•
Granted: 1952-03-25
•
Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 Sidney H Liebson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:22
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
AN IONIZATION PULSE COUNTER TUBE COMPRISING AN ENVELOPE, A PAIR OF ELECTRODES THEREIN, AND A GASEOUS FILLING THEREFOR CONSISTING ESSENTIALLY OF CHLORINE AND A NOBLE GAS LIGHTER THAN RADON IN AN AMOUNT LESS THAN 2.5% THEREOF.
Claim 2
Dependent Claim
36 words
AN IONIZATION PULSE COUNTER TUBE COMPRISING AN ENVELOPE, A PAIR OF ELECTRODES THEREIN, AND A GASEOUS FILLING THEREFOR CONSISTING ESSENTIALLY OF CHLORINE AND A NOBLE GAS LIGHTER THAN RADON IN AN AMOUNT LESS THAN 2.5% THEREOF.
References Cited (Backward Citations)
US2453886A
Cited
US2474851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |