Patent US1485302A successfully refreshed from Google Patents.
US1485302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Runner or guiding means of mine skips, cages, and other vehicles employed in vertical shafts
Assignee: Individual
•
Filing: 1922-08-31
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Granted: 1924-02-26
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Expires: 1942-08-31
Abstract
No abstract record available.
Inventors
- 👤 Sharp George Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:41
CPC Classifications
B; B66; B66B; B66B7/00; B66B7/02; B66B7/04; B66B7/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-02-25 | 1927-08-27 | 1928-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-02-25 | 1931-08-27 | 1932-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-02-25 | 1935-08-27 | 1936-02-26 | $7700.00 | Window Closed / Lapsed |