US1359993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic elevating or lowering apparatus
Assignee: MARGARET TJADER
•
Filing: 1919-03-06
•
Granted: 1920-11-23
•
Expires: 1939-03-06
Abstract
No abstract record available.
Inventors
- 👤 Frank R House
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:30
CPC Classifications
B; B66; B66D; B66D5/00; B66D2700/00; B66D2700/03
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1923-11-23 | 1924-05-24 | 1924-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-11-23 | 1928-05-24 | 1928-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-11-23 | 1932-05-24 | 1932-11-23 | $7700.00 | Window Closed / Lapsed |