Patent US2770009A successfully refreshed from Google Patents.
US3511301A
Expired / Lapsed
US
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Door sections having unitized hardware
Assignee: Graham Door Co
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Filing: 1967-10-26
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Granted: 1970-05-12
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Expires: 1987-10-26
Abstract
No abstract record available.
Inventors
- 👤 John R Graham
- 👤 Walter K Malek
- 👤 Robert H Comp
- 👤 Henry Z Substelny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:31
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/48; E06B3/485; E06B3/486; E05; E05D; E05D15/00; E05D15/16; E05D15/165; E05D15/24; E05D15/242; E05D1/00; E05D1/04; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/684; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2952314A
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US3198242A
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US3415304A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |