US3246435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building of composite panels with interfitting posts and rotatable clamp type fasteners
Assignee: Lockheed Martin Corp
•
Filing: 1962-04-23
•
Granted: 1966-04-19
•
Expires: 1982-04-23
Abstract
No abstract record available.
Inventors
- 👤 Gordon C Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:12
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/02; E04B1/14; E04B1/08; E04B1/18; E04B1/24; E04C; E04C2/00; E04C2/44; E04C2/52; E04C2/521; E04B2001/2481
Claims Analysis
Total Claims: 0
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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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |