US2854704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated grandstand
Assignee: Individual
•
Filing: 1955-01-17
•
Granted: 1958-10-07
•
Expires: 1975-01-17
Abstract
No abstract record available.
Inventors
- 👤 William B Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:26
CPC Classifications
E; E04; E04H; E04H3/00; E04H3/10; E04H3/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CH49538A
Cited
US1367497A
Cited
CH97363A
Cited
US2054960A
Cited
US1745087A
Cited
US1839679A
Cited
US2158939A
Cited
US2297101A
Cited
US2611422A
Cited
US2606345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |