US2899291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
heiskell
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:47
CPC Classifications
C; C06; C06C; C06C15/00; C06B; C06B33/00; F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/38; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/114
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A COMPOSITION FOR A TRACER UNIT COMPRISING A TRACER MIXTURE CONTAINING ABOUT 31.8% MAGNESIUM, ABOUT 30.9% STRONTIUM NITRATE, ABOUT 27.3% STRONTIUM TARTRATE, ABOUT 4.6% HEXACHLOROBENZENE, ABOUT 0.9% CHARCOAL, AND A BINDER THEREFOR COMPOSED OF ABOUT 4.5% STEARIC ACID.
Claim 2
Dependent Claim
38 words
A COMPOSITION FOR A TRACER UNIT COMPRISING A TRACER MIXTURE CONTAINING ABOUT 31.8% MAGNESIUM, ABOUT 30.9% STRONTIUM NITRATE, ABOUT 27.3% STRONTIUM TARTRATE, ABOUT 4.6% HEXACHLOROBENZENE, ABOUT 0.9% CHARCOAL, AND A BINDER THEREFOR COMPOSED OF ABOUT 4.5% STEARIC ACID.
References Cited (Backward Citations)
US1708174A
Cited
GB189807562A
Cited
GB349839A
Cited
US2115047A
Cited
US2362502A
Cited
US2410801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |