US2976136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for tracer unit
Assignee: Individual
•
Filing: 1959-02-10
•
Granted: 1961-03-21
•
Expires: 1979-02-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Heiskell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:25
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
35 words
A SLOW-BURNING, NON-FLASH IGNITER MIXTURE FOR A TRACER UNIT CONSISTING ESSENTIALLY OF 76 TO 78.4% BARIUM PEROXIDE, FROM 18.4 TO 23% ANTIMONY SULPHIDE, UP TO 2.2% MAGNESIUM, AND CONTAINING AN AMOUNT UP TO 1% GRAPHITE.
Claim 2
Dependent Claim
35 words
A SLOW-BURNING, NON-FLASH IGNITER MIXTURE FOR A TRACER UNIT CONSISTING ESSENTIALLY OF 76 TO 78.4% BARIUM PEROXIDE, FROM 18.4 TO 23% ANTIMONY SULPHIDE, UP TO 2.2% MAGNESIUM, AND CONTAINING AN AMOUNT UP TO 1% GRAPHITE.
References Cited (Backward Citations)
GB349839A
Cited
US2115047A
Cited
US2362502A
Cited
US2410801A
Cited
US2899291A
Cited
US2726943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |