US2853541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door for screen room
Assignee: Individual
•
Filing: 1955-03-23
•
Granted: 1958-09-23
•
Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Erik A Lindgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:48
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/52; H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0015; H05K9/0016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2405987A
Cited
US2757225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |