Patent US2011557A successfully refreshed from Google Patents.
US2011557A
Expired / Lapsed
US
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Window structure
Assignee: Individual
•
Filing: 1933-12-07
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Granted: 1935-08-20
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Expires: 1953-12-07
Abstract
No abstract record available.
Inventors
- 👤 Frederick O Anderegg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:57
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/6612; E06B3/663; E06B3/66304; E06B3/66309; E06B3/66328; E06B3/66333; E06B3/66342; E06B3/66347; E06B3/677; Y; Y02; Y02A; Y02A30/00; Y02A30/24; Y02A30/249; Y02B; Y02B80/00; Y02B80/22; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645
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) | 1938-08-19 | 1939-02-18 | 1939-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-08-19 | 1943-02-18 | 1943-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-08-19 | 1947-02-18 | 1947-08-20 | $7700.00 | Window Closed / Lapsed |