Patent US2958918A successfully refreshed from Google Patents.
US2958918A
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Mold and method for making a dome structure
Assignee: Individual
•
Filing: 1956-08-01
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Granted: 1960-11-08
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Expires: 1976-08-01
Abstract
No abstract record available.
Inventors
- 👤 James C A Macmillan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:49
CPC Classifications
B; B28; B28B; B28B23/00; A; A63; A63H; A63H33/00; A63H33/04; A63H33/10; A63H33/108; B28B7/00; B28B7/06; B28B7/16; B28B7/168; B28B7/24; B28B7/34; B28B7/348; E; E04; E04B; E04B1/00; E04B1/32; E04B1/3211; E04G; E04G11/00; E04G11/04; E04B2001/327; E04B2001/3276; Y; Y10; Y10S; Y10S425/00; Y10S425/044; Y10S425/057
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US796641A
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US1013536A
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US1140840A
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US1287599A
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US1976627A
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US2309149A
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US2469603A
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US2433210A
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US2559846A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |