US2733177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
meyer
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:10
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0442; F41H5/0457; F41H5/045; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/12; Y10T428/12326; Y10T428/12347; Y10T428/12361; Y10T428/12368; Y10T428/1241; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/166
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
ARMOR ADAPTED TO RESTRAIN PENETRATION OF PROJECTILES THERETHROUGH COMPRISING LAYERS OF RIGID PLATES HAVING LAMINATED THEREBETWEEN ELASTIC LAYERS EACH OF WHICH COMPRISES A PLURALITY OF LEAF SPRINGS, AND MEANS FOR HOLDING SAID LAYERS TOGETHER, EACH OF SAID LAYERS OF RIGID PLATES COMPRISING PLATES HAVING EDGES ABUTTING, EACH OF THE PLATES IN EACH OF SAID LAYERS OF RIGID PLATES HAVING AN AREA GREATER THAN THE AREA OF EACH OF THE PLATES IN THE NEXT ABOVE LAYER OF RIGID PLATES.
References Cited (Backward Citations)
GB191319360A
Cited
US1290799A
Cited
US1296113A
Cited
US1758296A
Cited
FR854059A
Cited
US2399184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |