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Patent US3110259A successfully refreshed from Google Patents.
US3110259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal device and composition therefor
Assignee: Individual
•
Filing: 1961-08-16
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Granted: 1963-11-12
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Expires: 1981-08-16
Abstract
No abstract record available.
Inventors
- 👤 Edward F Van Dersarl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:12
CPC Classifications
B; B63; B63B; B63B51/00; B63B51/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A DEVICE FOR PRODUCING A SIGNAL, COMPRISING AN IMPERFORATE OUTER CONTAINER; A PERVIOUS INNER CONTAINER CONTAINING A SIGNAL COMPOSITION COMPRISING AN INTIMATE MIXTURE OF FINELY DIVIDED MAGNESIUM ALUMINUM PHOSPHIDE AND FINELY DIVIDED CALCIUM PHOSPHIDE, SAID CALCIUM PHOSPHIDE COMPRISING MORE THAN 5% AND UP TO APPROXIMATELY 20% BY WEIGHT OF SAID MAGNESIUM ALUMINUM PHOSPHIDE, SAID SIGNAL COMPOSITION BEING ADAPTED TO REACT WITH WATER TO PRODUCE GASEOUS REACTION PRODUCTS WHICH
Claim 2
Independent Claim
68 words
A DEVICE FOR PRODUCING A SIGNAL, COMPRISING AN IMPERFORATE OUTER CONTAINER; A PERVIOUS INNER CONTAINER CONTAINING A SIGNAL COMPOSITION COMPRISING AN INTIMATE MIXTURE OF FINELY DIVIDED MAGNESIUM ALUMINUM PHOSPHIDE AND FINELY DIVIDED CALCIUM PHOSPHIDE, SAID CALCIUM PHOSPHIDE COMPRISING MORE THAN 5% AND UP TO APPROXIMATELY 20% BY WEIGHT OF SAID MAGNESIUM ALUMINUM PHOSPHIDE, SAID SIGNAL COMPOSITION BEING ADAPTED TO REACT WITH WATER TO PRODUCE GASEOUS REACTION PRODUCTS WHICH
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) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |