US3480148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conical honeycomb structure
Assignee: Metal Tech Inc
•
Filing: 1967-02-02
•
Granted: 1969-11-25
•
Expires: 1987-02-02
Abstract
No abstract record available.
Inventors
- 👤 Edward T Bryand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:21
CPC Classifications
B; B04; B04B; B04B7/00; B04B7/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1940813A
Cited
US2226463A
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US2321207A
Cited
US3139375A
Cited
US3199681A
Cited
US3226257A
Cited
US3259961A
Cited
US3411631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |