US2171653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable column for lamps and other articles
Assignee: Individual
•
Filing: 1938-11-23
•
Granted: 1939-09-05
•
Expires: 1958-11-23
Abstract
No abstract record available.
Inventors
- 👤 Heitmann Grace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:43
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/22; F16; F16B; F16B21/00; F16B21/10; F16B21/12; F16B21/125; F16B7/00; F16B7/10; F16B7/105; F16B7/22
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) | 1942-09-04 | 1943-03-06 | 1943-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-09-04 | 1947-03-06 | 1947-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-09-04 | 1951-03-06 | 1951-09-05 | $7700.00 | Window Closed / Lapsed |