Patent US2053251A successfully refreshed from Google Patents.
Patent US3766984A successfully refreshed from Google Patents.
Patent US3047984A successfully refreshed from Google Patents.
US3047984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural grille unit
Assignee: Individual
•
Filing: 1959-05-18
•
Granted: 1962-08-07
•
Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Lauro Joseph N De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:35
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/01
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) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |