US2827117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertically swinging flexible doors
Assignee: Individual
•
Filing: 1954-05-25
•
Granted: 1958-03-18
•
Expires: 1974-05-25
Abstract
No abstract record available.
Inventors
- 👤 Bateman William Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:51
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/70; E06B3/80; Y; Y10; Y10S; Y10S160/00; Y10S160/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1112159A
Cited
US1386621A
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GB259778A
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US2135057A
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US2279572A
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US2309928A
Cited
US2630170A
Cited
US2619167A
Cited
US2621725A
Cited
US2688164A
Cited
FR1079154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |