Patent US3280744A successfully refreshed from Google Patents.
US3280744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrotechnic device
Assignee: Individual
•
Filing: 1965-05-24
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Granted: 1966-10-25
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Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 Paul E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:27
CPC Classifications
F; F42; F42B; F42B4/00; F42B4/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PYROTECHNIC DEVICE COMPRISING, (A) A TUBULAR MEMBER HAVING A CHARGE OF COMBUSTIBLE MATERIAL THEREIN, SAID TUBULAR MEMBER HAVING A LOWER END, (B) A ONE PIECE BASE MEMBER HAVING A BODY PORTION SECURED TO THE TUBULAR MEMBER AT SAID LOWER END IN COVERING RELATION THERETO AND A CIRCUMFERENTIAL FLANGE PORTION EXTENDING LATERALLY OUTWADLY THEREFROM, (C) AND A PLURALITY OF CIRCUMFERENTIALLY SPACED BLUNT TIPPED RIGID PROJECTIONS INTEGRAL WITH AND DEPENDING FROM ONE FACE OF THE FLANGE PORTION FOR ENGAGEMENT WITH A SUPPORT SURFACE FOR MULTIPLE POINT SUPPORT, SAID PROJECTIONS BEING TAPERED FOR FACILITATING INSERTION INTO AN EARTH SURFACE.
Claim 2
Dependent Claim
97 words
A PYROTECHNIC DEVICE COMPRISING, (A) A TUBULAR MEMBER HAVING A CHARGE OF COMBUSTIBLE MATERIAL THEREIN, SAID TUBULAR MEMBER HAVING A LOWER END, (B) A ONE PIECE BASE MEMBER HAVING A BODY PORTION SECURED TO THE TUBULAR MEMBER AT SAID LOWER END IN COVERING RELATION THERETO AND A CIRCUMFERENTIAL FLANGE PORTION EXTENDING LATERALLY OUTWADLY THEREFROM, (C) AND A PLURALITY OF CIRCUMFERENTIALLY SPACED BLUNT TIPPED RIGID PROJECTIONS INTEGRAL WITH AND DEPENDING FROM ONE FACE OF THE FLANGE PORTION FOR ENGAGEMENT WITH A SUPPORT SURFACE FOR MULTIPLE POINT SUPPORT, SAID PROJECTIONS BEING TAPERED FOR FACILITATING INSERTION INTO AN EARTH SURFACE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |