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Patent US3120183A successfully refreshed from Google Patents.
US3120183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrotechnic device
Assignee: Waeco Ltd
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Filing: 1961-02-01
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Granted: 1964-02-04
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Expires: 1981-02-01
Abstract
No abstract record available.
Inventors
- 👤 Wheelwright Edward Hanley
- 👤 Bonness Donald John
- 👤 Macdonald Ronald Henry
- 👤 Curtis Gordon Wilfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:05
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/18; B63; B63B; B63B51/00; B63B51/04; F; F17; F17C; F17C3/00; F17C3/005; F41; F41H; F41H9/00; F41H9/06; F41H9/08; F42; F42B; F42B4/00; F42B4/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A MARINE DISTRESS SIGNAL COMPRISING (A) A SEAMLESS TUBULAR OUTER CASING OF RESIN BONDED WATER-RESISTANT HEAT-INSULATING MATERIAL, (B) A CHARGE OF A PYROTECHNIC SMOKE GENERATING COMPOSITION. (C) AN INNER TUBULAR CASING HOUSING SAID CHARGE, THE INNER TUBULAR CASING BEING A SLIDING FIT WITHIN SAID OUTER CASING AND HAVING ITS ENDS SPACED LENGTHWISE FROM THE ENDS OF THE OUTER CASING, (D) A SERIES OF SPACED DISCS WITHIN ONE END OF SAID OUTER CASING BEYOND THE INNER CASING, SAID DISCS HAVING APERATURES THEREIN AND FORMING A BAFFLED SMOKE OUTLET AT SAID ONE END OF THE OUTER CASING, (E) IGNITION MEANS FOR THE CHARGE, SAID IGNITION MEANS INCLUDING
Claim 2
Dependent Claim
105 words
A MARINE DISTRESS SIGNAL COMPRISING (A) A SEAMLESS TUBULAR OUTER CASING OF RESIN BONDED WATER-RESISTANT HEAT-INSULATING MATERIAL, (B) A CHARGE OF A PYROTECHNIC SMOKE GENERATING COMPOSITION. (C) AN INNER TUBULAR CASING HOUSING SAID CHARGE, THE INNER TUBULAR CASING BEING A SLIDING FIT WITHIN SAID OUTER CASING AND HAVING ITS ENDS SPACED LENGTHWISE FROM THE ENDS OF THE OUTER CASING, (D) A SERIES OF SPACED DISCS WITHIN ONE END OF SAID OUTER CASING BEYOND THE INNER CASING, SAID DISCS HAVING APERATURES THEREIN AND FORMING A BAFFLED SMOKE OUTLET AT SAID ONE END OF THE OUTER CASING, (E) IGNITION MEANS FOR THE CHARGE, SAID IGNITION MEANS INCLUDING
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) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |