US3431818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight protective armor plate
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1965-04-26
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Granted: 1969-03-11
•
Expires: 1985-04-26
Abstract
No abstract record available.
Inventors
- 👤 Harry A King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:28
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0414; F41H5/0492
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A LIGHTWEIGHT ARMOR PLATE FOR PROTECTING AN AREA AGAINST HIGH ENERGY PARTICLES, SUCH AS PROJECTILES, BY RESISTING THE PENETRATION THEREOF, SAID ARMOR PLATE COMPRISING (A) A BODY OF NON-METALLIC, SHATTER-RESISTANT MATERIAL, (B) A PLURALITY OF SPHERICAL FRAGMENTATION-INDUCING AND ENERGY-DISSIPATING ELEMENTS EMBEDDED IN SAID NON-METALLIC BODY SO AS TO BE RIGIDLY HELD IN PLACE THEREBY, SAID SPHERICAL FRAGMENTATION-INDUCING AND ENERGY-DISSIPATING ELEMENTS BEING ARRANGED IN AT LEAST ONE LAYER AND IN SPACED RELATIONSHIP WITH RESPECT TO EACH OTHER IN SAID BODY, (C) SAID PLURALITY OF SPHERICAL FRAGMENTATION-INDUCING AND ENERGY-DISSIPATING ELEMENTS BEING INVIDUALLY SHATTERABLE IN RESPONSE TO THE IMPACT OF A HIGH ENERGY PARTICLE THEREAGAINST TO CAUSE THE HIGH ENERGY PARTICLE TO BE BROKEN INTO FRAGMENTS FOR DISSIPATING THE FORCE OF THE HIGH ENERGY PARTICLE WHILE TENDING TO DIVERT THE PATH TAKEN BY THE FRAGMENTS OF THE HIGH ENERGY PARTICLE. (D) LAYERS OF ANTI-SPALLING MATERIAL IN SAID BODY AND RESPECTIVELY DISPOSED FORWARDLY AND REARWARDLY OF SAID SPHERICAL FRAGMENTATION-INDUCING AND ENERGYDISSIPATING ELEMENTS TO DEFINE CONFINING BOUNDARIES THEREFOR, AND
Claim 2
Dependent Claim
164 words
A LIGHTWEIGHT ARMOR PLATE FOR PROTECTING AN AREA AGAINST HIGH ENERGY PARTICLES, SUCH AS PROJECTILES, BY RESISTING THE PENETRATION THEREOF, SAID ARMOR PLATE COMPRISING (A) A BODY OF NON-METALLIC, SHATTER-RESISTANT MATERIAL, (B) A PLURALITY OF SPHERICAL FRAGMENTATION-INDUCING AND ENERGY-DISSIPATING ELEMENTS EMBEDDED IN SAID NON-METALLIC BODY SO AS TO BE RIGIDLY HELD IN PLACE THEREBY, SAID SPHERICAL FRAGMENTATION-INDUCING AND ENERGY-DISSIPATING ELEMENTS BEING ARRANGED IN AT LEAST ONE LAYER AND IN SPACED RELATIONSHIP WITH RESPECT TO EACH OTHER IN SAID BODY, (C) SAID PLURALITY OF SPHERICAL FRAGMENTATION-INDUCING AND ENERGY-DISSIPATING ELEMENTS BEING INVIDUALLY SHATTERABLE IN RESPONSE TO THE IMPACT OF A HIGH ENERGY PARTICLE THEREAGAINST TO CAUSE THE HIGH ENERGY PARTICLE TO BE BROKEN INTO FRAGMENTS FOR DISSIPATING THE FORCE OF THE HIGH ENERGY PARTICLE WHILE TENDING TO DIVERT THE PATH TAKEN BY THE FRAGMENTS OF THE HIGH ENERGY PARTICLE. (D) LAYERS OF ANTI-SPALLING MATERIAL IN SAID BODY AND RESPECTIVELY DISPOSED FORWARDLY AND REARWARDLY OF SAID SPHERICAL FRAGMENTATION-INDUCING AND ENERGYDISSIPATING ELEMENTS TO DEFINE CONFINING BOUNDARIES THEREFOR, AND
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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) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |