US2389375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for bolting up double windows connected with one another
Assignee: Individual
•
Filing: 1943-02-04
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Granted: 1945-11-20
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Expires: 1963-02-04
Abstract
No abstract record available.
Inventors
- 👤 Lundholm Josef Enar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:48
CPC Classifications
E; E05; E05C; E05C7/00; E05C7/02; Y; Y10; Y10T; Y10T24/00; Y10T24/36; Y10T24/3651; Y10T24/3655; Y10T24/366; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45775; Y10T24/45822; Y10T24/45832; Y10T24/45848; Y10T24/45969; Y10T292/00; Y10T292/08; Y10T292/0876; Y10T292/088; Y10T292/1039; Y10T292/1041
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) | 1948-11-19 | 1949-05-21 | 1949-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-11-19 | 1953-05-21 | 1953-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-11-19 | 1957-05-21 | 1957-11-20 | $7700.00 | Window Closed / Lapsed |