US3449877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: MillerKnoll Inc
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Filing: 1966-07-11
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Granted: 1969-06-17
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Expires: 1986-07-11
Abstract
No abstract record available.
Inventors
- 👤 Ronald H Beckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:52
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/76; E04B2/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1849811A
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US2740999A
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DE864147C
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US3072226A
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US3078968A
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US3120031A
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US3133322A
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US3162905A
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US3339324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |