US2558726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incendiary article
Assignee: Individual
•
Filing: 1941-04-09
•
Granted: 1951-07-03
•
Expires: 1961-04-09
Abstract
No abstract record available.
Inventors
- 👤 Maurice E Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:24
CPC Classifications
F; F42; F42B; F42B23/00; F41; F41H; F41H9/00; F42B39/00; F42B39/14; F42B39/16; F42B4/00; F42B4/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN AN INCENDIARY DEVICE, A SELF-IGNITING AGENT OF THE TYPE WHICH RAPIDLY INCREASES IN TEMPERATURE OF THE KINDLING POINT WHEN EXPOSED TO THE AIR, AN ENCLOSING CASING INITIALLY PROTECTING THE AGENT FROM THE ATMOSPHERE BUT COMPOSED AT LEAST IN PART OF THE MATERIAL SLOWLY DEFORMABLE UPON CONTINUED EXPOSURE TO THE ATMOSPHERE TO ADMIT AIR TO THE AGENT TO INITIATE IGNITION.
Claim 2
Dependent Claim
60 words
IN AN INCENDIARY DEVICE, A SELF-IGNITING AGENT OF THE TYPE WHICH RAPIDLY INCREASES IN TEMPERATURE OF THE KINDLING POINT WHEN EXPOSED TO THE AIR, AN ENCLOSING CASING INITIALLY PROTECTING THE AGENT FROM THE ATMOSPHERE BUT COMPOSED AT LEAST IN PART OF THE MATERIAL SLOWLY DEFORMABLE UPON CONTINUED EXPOSURE TO THE ATMOSPHERE TO ADMIT AIR TO THE AGENT TO INITIATE IGNITION.
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) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |