US2516726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stairway elevator
Assignee: Individual
•
Filing: 1949-01-08
•
Granted: 1950-07-25
•
Expires: 1969-01-08
Abstract
No abstract record available.
Inventors
- 👤 Stanley L Saxton
- 👤 Stephen E Lowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:16
CPC Classifications
B; B66; B66B; B66B9/00; B66B9/06; B66B9/08; B66B9/0807; B66B9/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2212388A
Cited
US2472943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |