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US2645114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow structure
Assignee: Individual
•
Filing: 1945-10-18
•
Granted: 1953-07-14
•
Expires: 1965-10-18
Abstract
No abstract record available.
Inventors
- 👤 Amirikian Arsham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:22
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/348; E04B2/00; E04B2/02; E04B2/14; E04B2/16; E04B2/20
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) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |