US3477967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syntactic foam
Assignee: United States Department of the Navy
•
Filing: 1966-03-28
•
Granted: 1969-11-11
•
Expires: 1986-03-28
Abstract
No abstract record available.
Inventors
- 👤 Israel Resnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:20
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/32; B; B29; B29C; B29C70/00; B29C70/58; B29C70/66; B29K; B29K2105/00; B29K2105/04; B29K2105/06; B29K2105/16; B29K2105/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2806509A
Cited
US2967843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |