US2500849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window construction
Assignee: Individual
•
Filing: 1946-01-10
•
Granted: 1950-03-14
•
Expires: 1966-01-10
Abstract
No abstract record available.
Inventors
- 👤 Everett S Menns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:40
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5054; E06B3/5063; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0843; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0993
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US278719A
Cited
US1338689A
Cited
US1621851A
Cited
US1644655A
Cited
US1658317A
Cited
US1735649A
Cited
US1714575A
Cited
US2050003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |