US2995797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable form
Assignee: Individual
•
Filing: 1959-12-24
•
Granted: 1961-08-15
•
Expires: 1979-12-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/04; E04G9/00; E04G9/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1152334A
Cited
US1167797A
Cited
US1215318A
Cited
US1585083A
Cited
US1864043A
Cited
US1830606A
Cited
US1801014A
Cited
US2912940A
Cited
US2891491A
Cited
US2898924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |