US3033330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partition system
Assignee: EF Hauserman Co
•
Filing: 1957-06-05
•
Granted: 1962-05-08
•
Expires: 1977-06-05
Abstract
No abstract record available.
Inventors
- 👤 Gilbert L Fowles
- 👤 Gordon J Pollock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:05
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/82; E04B2/825
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1094278A
Cited
US1076838A
Cited
US1506442A
Cited
US1865868A
Cited
US2128797A
Cited
US2331752A
Cited
US2435286A
Cited
US2673775A
Cited
US2747236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |