US2786753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrophoric alloys
Assignee: Individual
•
Filing: 1954-02-16
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Granted: 1957-03-26
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Expires: 1974-02-16
Abstract
No abstract record available.
Inventors
- 👤 Smetana Otto
- 👤 Nowotny Hans
- 👤 Komarek Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:03
CPC Classifications
C; C06; C06C; C06C15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PYROPHORIC MATERIAL CONSISTING ESSENTIALLY OF TITANIUM AND BISMUTH IN THE PROPORTIONS OF 15 TO 55% BYU WEIGHT OF TITANIUM AND 20 TO 82% BY WEIGHT OF BISMUTH, THE COMBINED AMOUNTS OF TITANIUM AND BISMUTH BEING AT LEAST 55% OF THE MATERIAL.
Claim 2
Dependent Claim
42 words
A PYROPHORIC MATERIAL CONSISTING ESSENTIALLY OF TITANIUM AND BISMUTH IN THE PROPORTIONS OF 15 TO 55% BYU WEIGHT OF TITANIUM AND 20 TO 82% BY WEIGHT OF BISMUTH, THE COMBINED AMOUNTS OF TITANIUM AND BISMUTH BEING AT LEAST 55% OF THE MATERIAL.
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) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |