Patent US2860384A successfully refreshed from Google Patents.
US2860384A
Expired / Lapsed
US
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Tapered sectional design for expansible units
Assignee: PALACE Corp
•
Filing: 1954-03-09
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Granted: 1958-11-18
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Expires: 1974-03-09
Abstract
No abstract record available.
Inventors
- 👤 Clyde F Wait
- 👤 Donald F Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:48
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/343; E04B1/344; E04B1/3442; E04B1/3444
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US487476A
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CA482243A
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US983015A
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US1883609A
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US2155876A
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US2099597A
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FR828477A
Cited
US2395691A
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US2484312A
Cited
US2589416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |