Patent US3493032A successfully refreshed from Google Patents.
US3493032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide track for movable partitions
Assignee: MERLIN W BALLARD
•
Filing: 1968-06-13
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Granted: 1970-02-03
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Expires: 1988-06-13
Abstract
No abstract record available.
Inventors
- 👤 William S Brown Jr
- 👤 Merlin W Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:35
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4636; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/0626; E05D15/0656
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1868233A
Cited
US2599747A
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US2658571A
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US2934139A
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US3073383A
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US3090430A
Cited
US3231005A
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US3349829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |