US3487601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support based,panel attachment
Assignee: Dexion Ltd
•
Filing: 1967-12-21
•
Granted: 1970-01-06
•
Expires: 1987-12-21
Abstract
No abstract record available.
Inventors
- 👤 John Brian James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:38
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/58; E06B3/5807; E06B3/5821
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1891932A
Cited
US2701041A
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US2638191A
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US2963126A
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US2934800A
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US2933779A
Cited
US3090083A
Cited
US3038568A
Cited
GB923278A
Cited
US3196998A
Cited
US3218769A
Cited
US3214873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |