US3445963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panic breakaway balance door
Assignee: Roto Swing Inc
•
Filing: 1967-07-21
•
Granted: 1969-05-27
•
Expires: 1987-07-21
Abstract
No abstract record available.
Inventors
- 👤 James E Gilbert
- 👤 Larry O Kroutil
- 👤 Gary G Ingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:55
CPC Classifications
E; E06; E06B; E06B5/00; E05; E05B; E05B65/00; E05B65/10; E05B65/102; E05D; E05D7/00; E05D7/08; E05D7/081; E05D7/082; E05D7/083; E05D7/084; E05D7/085; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US936214A
Cited
US1026888A
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US2019528A
Cited
US2216609A
Cited
US2530263A
Cited
US2576854A
Cited
US2581783A
Cited
US3105992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |