US2920480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for indicating the expiration of the assigned or safe life of structural members
Assignee: Individual
•
Filing: 1957-01-14
•
Granted: 1960-01-12
•
Expires: 1977-01-14
Abstract
No abstract record available.
Inventors
- 👤 Haas Tibor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:25
CPC Classifications
G; G01; G01M; G01M5/00; G01M5/0033; G01N; G01N3/00; G01N3/02; G01N3/06; G01N2203/00; G01N2203/02; G01N2203/026; G01N2203/0262; G01N2203/027
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |