Patent US2477987A successfully refreshed from Google Patents.
US2477987A
Expired / Lapsed
US
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Clapboard unit for wall coverings
Assignee: CRESSWELL ROLL FORMING Co
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Filing: 1947-01-08
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Granted: 1949-08-02
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Expires: 1967-01-08
Abstract
No abstract record available.
Inventors
- 👤 Charles M Kinghorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:12
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0864; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49844
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US214027A
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US343775A
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US720893A
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US1110238A
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US1666115A
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US2095533A
Cited
US2167816A
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US2227535A
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US2180317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |