US3066968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lifting a stack of building units and the like
Assignee: BICKERSTAFF Inc
•
Filing: 1961-04-19
•
Granted: 1962-12-04
•
Expires: 1981-04-19
Abstract
No abstract record available.
Inventors
- 👤 Marion E Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:51
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; E04G21/16; B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1265106A
Cited
US1840327A
Cited
US2503689A
Cited
US2494823A
Cited
US2623775A
Cited
US2989201A
Cited
US2849253A
Cited
US2918322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |