US3030243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
First fire and igniter composition
Assignee: Individual
•
Filing: 1958-02-24
•
Granted: 1962-04-17
•
Expires: 1978-02-24
Abstract
No abstract record available.
Inventors
- 👤 Hart David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:54
CPC Classifications
C; C06; C06C; C06C9/00; C06B; C06B33/00; C06B33/06; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/113
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A FIRST FIRE AND IGNITER COMPOSITION CONSISTING ESSENTIALLY OF, BY WEIGHT, 60 TO 75 PERCENT OF ZIRCONIUM, 5 TO 30 PERCENT OF SULFUR, 5 TO 20 PERCENT OF POTASSIUM PERCHLORATE, ALL OF SAID INGREDIENTS BEING FINELY DIVIDED SO AS TO PASS THROUGH A 250 MESH SCREEN.
Claim 2
Dependent Claim
46 words
A FIRST FIRE AND IGNITER COMPOSITION CONSISTING ESSENTIALLY OF, BY WEIGHT, 60 TO 75 PERCENT OF ZIRCONIUM, 5 TO 30 PERCENT OF SULFUR, 5 TO 20 PERCENT OF POTASSIUM PERCHLORATE, ALL OF SAID INGREDIENTS BEING FINELY DIVIDED SO AS TO PASS THROUGH A 250 MESH SCREEN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |