US2782887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window construction
Assignee: Individual
•
Filing: 1952-02-09
•
Granted: 1957-02-26
•
Expires: 1972-02-09
Abstract
No abstract record available.
Inventors
- 👤 Zimmermann Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:26
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/06; E06B3/08; E06B3/12; E06B3/14; E06B3/16; E06B3/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB331981A
Cited
US2008325A
Cited
FR749358A
Cited
US2091335A
Cited
US2091791A
Cited
US2106840A
Cited
US2552641A
Cited
US2557412A
Cited
US2538406A
Cited
US2581193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |