US1636018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skylight
Assignee: J Steinberg & Sons
•
Filing: 1922-05-04
•
Granted: 1927-07-19
•
Expires: 1942-05-04
Abstract
No abstract record available.
Inventors
- 👤 Irving C Steinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:59
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/02; E; E04; E04D; E04D13/00; E04D13/03; E04D13/0325; F24F11/00; F24F11/30; F24F11/32; F24F11/33; F24F11/34
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) | 1930-07-18 | 1931-01-17 | 1931-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-07-18 | 1935-01-17 | 1935-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-07-18 | 1939-01-17 | 1939-07-19 | $7700.00 | Window Closed / Lapsed |